diff --git a/man2/access.2 b/man2/access.2
index 93e83c6dd..7f796d00a 100644
--- a/man2/access.2
+++ b/man2/access.2
@@ -211,7 +211,7 @@ is
 and the file does not exist, or some other error occurred),
 \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .BR access ()
 and
diff --git a/man2/acct.2 b/man2/acct.2
index 856c4a409..40b813d02 100644
--- a/man2/acct.2
+++ b/man2/acct.2
@@ -69,7 +69,7 @@ An argument of NULL causes accounting to be turned off.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/alloc_hugepages.2 b/man2/alloc_hugepages.2
index 88aea0f91..619442429 100644
--- a/man2/alloc_hugepages.2
+++ b/man2/alloc_hugepages.2
@@ -113,7 +113,7 @@ returns the allocated virtual address, and
 returns zero.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B ENOSYS
diff --git a/man2/bind.2 b/man2/bind.2
index ee01d2157..548391f1d 100644
--- a/man2/bind.2
+++ b/man2/bind.2
@@ -154,7 +154,7 @@ See EXAMPLES below.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/bpf.2 b/man2/bpf.2
index d8ce40943..9034f3216 100644
--- a/man2/bpf.2
+++ b/man2/bpf.2
@@ -985,7 +985,7 @@ Zero.
 .PP
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B E2BIG
diff --git a/man2/capget.2 b/man2/capget.2
index cf680af6e..ac6834295 100644
--- a/man2/capget.2
+++ b/man2/capget.2
@@ -167,7 +167,7 @@ to all members of the process group whose ID is \-\fIpid\fP.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 The calls fail with the error
 .BR EINVAL ,
diff --git a/man2/chdir.2 b/man2/chdir.2
index e49c62b88..e157e5417 100644
--- a/man2/chdir.2
+++ b/man2/chdir.2
@@ -68,7 +68,7 @@ open file descriptor.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 Depending on the filesystem, other errors can be returned.
 The more
diff --git a/man2/chmod.2 b/man2/chmod.2
index 38d523030..a54aec7ed 100644
--- a/man2/chmod.2
+++ b/man2/chmod.2
@@ -231,7 +231,7 @@ for an explanation of the need for
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 Depending on the filesystem,
 errors other than those listed below can be returned.
diff --git a/man2/chown.2 b/man2/chown.2
index 22f760315..304fef293 100644
--- a/man2/chown.2
+++ b/man2/chown.2
@@ -218,7 +218,7 @@ for an explanation of the need for
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 Depending on the filesystem,
 errors other than those listed below can be returned.
diff --git a/man2/chroot.2 b/man2/chroot.2
index 2ac7b04e7..70a7dde17 100644
--- a/man2/chroot.2
+++ b/man2/chroot.2
@@ -112,7 +112,7 @@ descriptors may allow access to files outside the chroot tree.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 Depending on the filesystem, other errors can be returned.
 The more general errors are listed below:
diff --git a/man2/clone.2 b/man2/clone.2
index 84a367d49..5e5780268 100644
--- a/man2/clone.2
+++ b/man2/clone.2
@@ -1200,7 +1200,7 @@ in the caller's thread of execution.
 On failure, \-1 is returned
 in the caller's context, no child process will be created, and
 .I errno
-will be set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EAGAIN
diff --git a/man2/close.2 b/man2/close.2
index d19fbeb93..fed770719 100644
--- a/man2/close.2
+++ b/man2/close.2
@@ -67,7 +67,7 @@ the file is deleted.
 returns zero on success.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/connect.2 b/man2/connect.2
index e8ad37314..9572676ef 100644
--- a/man2/connect.2
+++ b/man2/connect.2
@@ -137,7 +137,7 @@ is supported on Linux since kernel 2.2.)
 If the connection or binding succeeds, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 The following are general socket errors only.
 There may be other domain-specific error codes.
diff --git a/man2/create_module.2 b/man2/create_module.2
index 712147913..9b47d4854 100644
--- a/man2/create_module.2
+++ b/man2/create_module.2
@@ -31,7 +31,7 @@ This system call requires privilege.
 On success, returns the kernel address at which the module will reside.
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EEXIST
diff --git a/man2/delete_module.2 b/man2/delete_module.2
index 1030e9698..cb78cf484 100644
--- a/man2/delete_module.2
+++ b/man2/delete_module.2
@@ -125,7 +125,7 @@ Using this flag taints the kernel (TAINT_FORCED_RMMOD).
 On success, zero is returned.
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBUSY
diff --git a/man2/dup.2 b/man2/dup.2
index 5c5f0c76e..dedc4b2ef 100644
--- a/man2/dup.2
+++ b/man2/dup.2
@@ -152,7 +152,7 @@ On success, these system calls
 return the new file descriptor.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/epoll_ctl.2 b/man2/epoll_ctl.2
index 3ee192fab..538b370c0 100644
--- a/man2/epoll_ctl.2
+++ b/man2/epoll_ctl.2
@@ -316,7 +316,7 @@ When an error occurs,
 .BR epoll_ctl ()
 returns \-1 and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/epoll_wait.2 b/man2/epoll_wait.2
index 55890c82a..8ade43297 100644
--- a/man2/epoll_wait.2
+++ b/man2/epoll_wait.2
@@ -181,7 +181,7 @@ When an error occurs,
 .BR epoll_wait ()
 returns \-1 and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/execve.2 b/man2/execve.2
index b6698da45..2280c03ae 100644
--- a/man2/execve.2
+++ b/man2/execve.2
@@ -441,7 +441,7 @@ On success,
 .BR execve ()
 does not return, on error \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B E2BIG
diff --git a/man2/execveat.2 b/man2/execveat.2
index b5d1cd57e..ef3606d8b 100644
--- a/man2/execveat.2
+++ b/man2/execveat.2
@@ -111,7 +111,7 @@ On success,
 does not return.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 The same errors that occur for
 .BR execve (2)
diff --git a/man2/fcntl.2 b/man2/fcntl.2
index f8d15f602..e5289043e 100644
--- a/man2/fcntl.2
+++ b/man2/fcntl.2
@@ -1661,7 +1661,7 @@ Zero.
 .PP
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .BR EACCES " or " EAGAIN
diff --git a/man2/flock.2 b/man2/flock.2
index beb89d128..61d4b5396 100644
--- a/man2/flock.2
+++ b/man2/flock.2
@@ -115,7 +115,7 @@ mode in which the file was opened.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/fork.2 b/man2/fork.2
index ffc1bc1f6..c93e9fa78 100644
--- a/man2/fork.2
+++ b/man2/fork.2
@@ -218,7 +218,7 @@ and 0 is returned in the child.
 On failure, \-1 is returned in the parent,
 no child process is created, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EAGAIN
diff --git a/man2/fsync.2 b/man2/fsync.2
index 5e577e379..8b2151c41 100644
--- a/man2/fsync.2
+++ b/man2/fsync.2
@@ -119,7 +119,7 @@ require all metadata to be synchronized with the disk.
 On success, these system calls return zero.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/get_kernel_syms.2 b/man2/get_kernel_syms.2
index 27661f0be..063f533fc 100644
--- a/man2/get_kernel_syms.2
+++ b/man2/get_kernel_syms.2
@@ -53,7 +53,7 @@ On success, returns the number of symbols copied to
 .IR table .
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 There is only one possible error return:
 .TP
diff --git a/man2/getcpu.2 b/man2/getcpu.2
index 59089bd74..5954cc5e8 100644
--- a/man2/getcpu.2
+++ b/man2/getcpu.2
@@ -55,7 +55,7 @@ is no longer current by the time the call returns.
 On success, 0 is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/getdents.2 b/man2/getdents.2
index 2a0576ffd..db8b945f3 100644
--- a/man2/getdents.2
+++ b/man2/getdents.2
@@ -186,7 +186,7 @@ On success, the number of bytes read is returned.
 On end of directory, 0 is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/getdomainname.2 b/man2/getdomainname.2
index 96ccb5fa7..c83b01b12 100644
--- a/man2/getdomainname.2
+++ b/man2/getdomainname.2
@@ -83,7 +83,7 @@ returns the first \fIlen\fP bytes (glibc) or gives an error (libc).
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .BR setdomainname ()
 can fail with the following errors:
diff --git a/man2/getgroups.2 b/man2/getgroups.2
index a59573064..ffe01fbb1 100644
--- a/man2/getgroups.2
+++ b/man2/getgroups.2
@@ -109,14 +109,14 @@ On success,
 returns the number of supplementary group IDs.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 On success,
 .BR setgroups ()
 returns 0.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/gethostname.2 b/man2/gethostname.2
index b7fa3cf57..6508e06ce 100644
--- a/man2/gethostname.2
+++ b/man2/gethostname.2
@@ -94,7 +94,7 @@ includes a terminating null byte.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/getitimer.2 b/man2/getitimer.2
index e1e748f61..b435c343e 100644
--- a/man2/getitimer.2
+++ b/man2/getitimer.2
@@ -134,7 +134,7 @@ if both of its subfields are zero, the timer is single-shot.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/getpeername.2 b/man2/getpeername.2
index 5b7eacce6..ef84b9ef1 100644
--- a/man2/getpeername.2
+++ b/man2/getpeername.2
@@ -71,7 +71,7 @@ will return a value greater than was supplied to the call.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/getrandom.2 b/man2/getrandom.2
index 1a9fea7bf..4c93e8111 100644
--- a/man2/getrandom.2
+++ b/man2/getrandom.2
@@ -138,7 +138,7 @@ source or the system call was interrupted by a signal.
 .PP
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EAGAIN
diff --git a/man2/getresuid.2 b/man2/getresuid.2
index ce24005b4..7ecc4fea5 100644
--- a/man2/getresuid.2
+++ b/man2/getresuid.2
@@ -51,7 +51,7 @@ performs the analogous task for the process's group IDs.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/getrlimit.2 b/man2/getrlimit.2
index 40e4c9dcd..7775d5444 100644
--- a/man2/getrlimit.2
+++ b/man2/getrlimit.2
@@ -508,7 +508,7 @@ must match the real group ID of the caller.
 On success, these system calls return 0.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/getrusage.2 b/man2/getrusage.2
index ffd2b030b..dfc5abbf0 100644
--- a/man2/getrusage.2
+++ b/man2/getrusage.2
@@ -188,7 +188,7 @@ exceeded its time slice.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/getsid.2 b/man2/getsid.2
index f6cf4d1df..d88755d9f 100644
--- a/man2/getsid.2
+++ b/man2/getsid.2
@@ -61,7 +61,7 @@ returns the session ID of the calling process.
 On success, a session ID is returned.
 On error, \fI(pid_t)\ \-1\fP will be returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EPERM
diff --git a/man2/getsockname.2 b/man2/getsockname.2
index 9b949715d..55db4b84c 100644
--- a/man2/getsockname.2
+++ b/man2/getsockname.2
@@ -68,7 +68,7 @@ will return a value greater than was supplied to the call.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/getsockopt.2 b/man2/getsockopt.2
index be4a92cf2..9e33b2d4f 100644
--- a/man2/getsockopt.2
+++ b/man2/getsockopt.2
@@ -131,7 +131,7 @@ and the appropriate protocol man pages.
 On success, zero is returned for the standard options.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 Netfilter allows the programmer
 to define custom socket options with associated handlers; for such
diff --git a/man2/getxattr.2 b/man2/getxattr.2
index 5e3c54bf1..5299f7856 100644
--- a/man2/getxattr.2
+++ b/man2/getxattr.2
@@ -106,7 +106,7 @@ On success, these calls return a nonnegative value which is
 the size (in bytes) of the extended attribute value.
 On failure, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B E2BIG
diff --git a/man2/init_module.2 b/man2/init_module.2
index 51e00ca65..31229ea93 100644
--- a/man2/init_module.2
+++ b/man2/init_module.2
@@ -150,7 +150,7 @@ as expected for malformed modules.
 On success, these system calls return 0.
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .BR EBADMSG " (since Linux 3.7)"
diff --git a/man2/inotify_add_watch.2 b/man2/inotify_add_watch.2
index f35ede144..37b675d6d 100644
--- a/man2/inotify_add_watch.2
+++ b/man2/inotify_add_watch.2
@@ -82,7 +82,7 @@ On success,
 returns a watch descriptor (a nonnegative integer).
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/ioctl.2 b/man2/ioctl.2
index 562bf2728..b71b84b0c 100644
--- a/man2/ioctl.2
+++ b/man2/ioctl.2
@@ -93,7 +93,7 @@ requests use the return value as an output parameter
 and return a nonnegative value on success.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/ioperm.2 b/man2/ioperm.2
index 991f8c49d..48a0466a1 100644
--- a/man2/ioperm.2
+++ b/man2/ioperm.2
@@ -79,7 +79,7 @@ return an error.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/iopl.2 b/man2/iopl.2
index 8e4ef95f4..efce64c52 100644
--- a/man2/iopl.2
+++ b/man2/iopl.2
@@ -59,7 +59,7 @@ return an error.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/kcmp.2 b/man2/kcmp.2
index 2d8e1d126..f2f55ab65 100644
--- a/man2/kcmp.2
+++ b/man2/kcmp.2
@@ -242,7 +242,7 @@ but ordering information is unavailable.
 .PP
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 .BR kcmp ()
 was designed to return values suitable for sorting.
diff --git a/man2/kill.2 b/man2/kill.2
index 0c7cf89c1..b6fa289ab 100644
--- a/man2/kill.2
+++ b/man2/kill.2
@@ -100,7 +100,7 @@ processes belong to the same session.
 On success (at least one signal was sent), zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/link.2 b/man2/link.2
index fd8618d85..d6f3b76bd 100644
--- a/man2/link.2
+++ b/man2/link.2
@@ -182,7 +182,7 @@ for an explanation of the need for
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/listen.2 b/man2/listen.2
index 37e358c5d..7c944ff4c 100644
--- a/man2/listen.2
+++ b/man2/listen.2
@@ -82,7 +82,7 @@ ignored so that a later reattempt at connection succeeds.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EADDRINUSE
diff --git a/man2/listxattr.2 b/man2/listxattr.2
index 40fcf377c..afd117869 100644
--- a/man2/listxattr.2
+++ b/man2/listxattr.2
@@ -128,7 +128,7 @@ On success, a nonnegative number is returned indicating the size of the
 extended attribute name list.
 On failure, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B E2BIG
diff --git a/man2/lookup_dcookie.2 b/man2/lookup_dcookie.2
index f98d771dc..c2f2a87e6 100644
--- a/man2/lookup_dcookie.2
+++ b/man2/lookup_dcookie.2
@@ -48,7 +48,7 @@ On success,
 returns the length of the path string copied into the buffer.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/madvise.2 b/man2/madvise.2
index 362960e04..688581b36 100644
--- a/man2/madvise.2
+++ b/man2/madvise.2
@@ -456,7 +456,7 @@ On success,
 returns zero.
 On error, it returns \-1 and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/membarrier.2 b/man2/membarrier.2
index c51d357a7..173195484 100644
--- a/man2/membarrier.2
+++ b/man2/membarrier.2
@@ -249,7 +249,7 @@ operations return zero.
 On error, \-1 is returned,
 and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 For a given command, with
 .I flags
diff --git a/man2/mincore.2 b/man2/mincore.2
index 87b94aeab..9371d58b1 100644
--- a/man2/mincore.2
+++ b/man2/mincore.2
@@ -103,7 +103,7 @@ On success,
 returns zero.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .B EAGAIN
 kernel is temporarily out of resources.
diff --git a/man2/mmap2.2 b/man2/mmap2.2
index c571cc302..349ee45e5 100644
--- a/man2/mmap2.2
+++ b/man2/mmap2.2
@@ -57,7 +57,7 @@ On success,
 returns a pointer to the mapped area.
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/mount.2 b/man2/mount.2
index 8f933ebf1..57d01d4de 100644
--- a/man2/mount.2
+++ b/man2/mount.2
@@ -627,7 +627,7 @@ to modify the behavior of the call.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 The error values given below result from filesystem type independent
 errors.
diff --git a/man2/mprotect.2 b/man2/mprotect.2
index 45eb5e60c..f08cca2df 100644
--- a/man2/mprotect.2
+++ b/man2/mprotect.2
@@ -144,7 +144,7 @@ and
 return zero.
 On error, these system calls return \-1, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/mremap.2 b/man2/mremap.2
index be4354e51..0b5aaf980 100644
--- a/man2/mremap.2
+++ b/man2/mremap.2
@@ -164,7 +164,7 @@ returns a pointer to the new virtual memory area.
 On error, the value
 .B MAP_FAILED
 (that is, \fI(void\ *)\ \-1\fP) is returned,
-and \fIerrno\fP is set appropriately.
+and \fIerrno\fP is set to indicate the error.
 .SH ERRORS
 .TP
 .B EAGAIN
diff --git a/man2/msync.2 b/man2/msync.2
index 22aae6bb7..f5234df89 100644
--- a/man2/msync.2
+++ b/man2/msync.2
@@ -74,7 +74,7 @@ Asks to invalidate other mappings of the same file
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBUSY
diff --git a/man2/nfsservctl.2 b/man2/nfsservctl.2
index 626c483b3..1c68c3af2 100644
--- a/man2/nfsservctl.2
+++ b/man2/nfsservctl.2
@@ -57,7 +57,7 @@ union nfsctl_res {
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH VERSIONS
 This system call was removed from the Linux kernel in version 3.1.
 Library support was removed from glibc in version 2.28.
diff --git a/man2/nice.2 b/man2/nice.2
index f9beae6c7..f018f095c 100644
--- a/man2/nice.2
+++ b/man2/nice.2
@@ -71,7 +71,7 @@ for details.
 On success, the new nice value is returned (but see NOTES below).
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 A successful call can legitimately return \-1.
 To detect an error, set
diff --git a/man2/openat2.2 b/man2/openat2.2
index 3bda20620..dbe6df533 100644
--- a/man2/openat2.2
+++ b/man2/openat2.2
@@ -394,7 +394,7 @@ an error is returned.
 On success, a new file descriptor is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 The set of errors returned by
 .BR openat2 ()
diff --git a/man2/pciconfig_read.2 b/man2/pciconfig_read.2
index ee60b364e..cec6f58e9 100644
--- a/man2/pciconfig_read.2
+++ b/man2/pciconfig_read.2
@@ -52,13 +52,13 @@ the IO base for PIO cycles, or the ISA holes if any.
 On success, zero is returned.
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .TP
 .BR pciconfig_write ()
 On success, zero is returned.
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .TP
 .BR pciconfig_iobase ()
 Returns information on locations of various I/O
diff --git a/man2/personality.2 b/man2/personality.2
index 4931635f3..219af317d 100644
--- a/man2/personality.2
+++ b/man2/personality.2
@@ -254,7 +254,7 @@ On success, the previous
 is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/pivot_root.2 b/man2/pivot_root.2
index 3871b6e5b..6012f4284 100644
--- a/man2/pivot_root.2
+++ b/man2/pivot_root.2
@@ -96,7 +96,7 @@ The current root directory must be a mount point.
 .SH RETURN VALUE
 On success, zero is returned.
 On error, \-1 is returned, and
-\fIerrno\fP is set appropriately.
+\fIerrno\fP is set to indicate the error.
 .SH ERRORS
 .BR pivot_root ()
 may fail with any of the same errors as
diff --git a/man2/pkey_alloc.2 b/man2/pkey_alloc.2
index b0ae983c2..1b5500afb 100644
--- a/man2/pkey_alloc.2
+++ b/man2/pkey_alloc.2
@@ -76,7 +76,7 @@ On success,
 returns zero.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/prctl.2 b/man2/prctl.2
index f25f05fdb..3e27b71f5 100644
--- a/man2/prctl.2
+++ b/man2/prctl.2
@@ -1932,7 +1932,7 @@ All other
 values return 0 on success.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/process_vm_readv.2 b/man2/process_vm_readv.2
index 43fed8be2..2fc292d70 100644
--- a/man2/process_vm_readv.2
+++ b/man2/process_vm_readv.2
@@ -227,7 +227,7 @@ a partial read/write occurred.
 .PP
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/ptrace.2 b/man2/ptrace.2
index fc9b99367..a3028476b 100644
--- a/man2/ptrace.2
+++ b/man2/ptrace.2
@@ -2332,7 +2332,7 @@ other requests return zero.
 .PP
 On error, all requests return \-1, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 Since the value returned by a successful
 .B PTRACE_PEEK*
 request may be \-1, the caller must clear
diff --git a/man2/query_module.2 b/man2/query_module.2
index 10b99a99a..f3d07fd3d 100644
--- a/man2/query_module.2
+++ b/man2/query_module.2
@@ -130,7 +130,7 @@ structure.
 On success, zero is returned.
 On error, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/read.2 b/man2/read.2
index 5ac058572..7e5848f97 100644
--- a/man2/read.2
+++ b/man2/read.2
@@ -93,7 +93,7 @@ See also NOTES.
 .PP
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 In this case, it is left unspecified whether
 the file position (if any) changes.
 .SH ERRORS
diff --git a/man2/readdir.2 b/man2/readdir.2
index e024b9f11..b30f746a3 100644
--- a/man2/readdir.2
+++ b/man2/readdir.2
@@ -95,7 +95,7 @@ On success, 1 is returned.
 On end of directory, 0 is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/readv.2 b/man2/readv.2
index b5a3fe7f4..4edca704f 100644
--- a/man2/readv.2
+++ b/man2/readv.2
@@ -282,7 +282,7 @@ than requested (see
 and
 .BR write (2)).
 .PP
-On error, \-1 is returned, and \fIerrno\fP is set appropriately.
+On error, \-1 is returned, and \fIerrno\fP is set to indicate the error.
 .SH ERRORS
 The errors are as given for
 .BR read (2)
diff --git a/man2/reboot.2 b/man2/reboot.2
index 869971ea7..c881e1266 100644
--- a/man2/reboot.2
+++ b/man2/reboot.2
@@ -221,7 +221,7 @@ For the other
 values, zero is returned on success.
 In all cases, \-1 is returned on failure, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/remap_file_pages.2 b/man2/remap_file_pages.2
index 8f2945e28..d2c352702 100644
--- a/man2/remap_file_pages.2
+++ b/man2/remap_file_pages.2
@@ -141,7 +141,7 @@ On success,
 returns 0.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/removexattr.2 b/man2/removexattr.2
index d8549fd2e..6ef3349e6 100644
--- a/man2/removexattr.2
+++ b/man2/removexattr.2
@@ -79,7 +79,7 @@ namespaces associated with an individual inode.
 On success, zero is returned.
 On failure, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B ENODATA
diff --git a/man2/rename.2 b/man2/rename.2
index fca3fd24b..527bafacf 100644
--- a/man2/rename.2
+++ b/man2/rename.2
@@ -294,7 +294,7 @@ and ubifs (since Linux 4.9).
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/rmdir.2 b/man2/rmdir.2
index 366af448f..fe32f93b1 100644
--- a/man2/rmdir.2
+++ b/man2/rmdir.2
@@ -43,7 +43,7 @@ deletes a directory, which must be empty.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/s390_guarded_storage.2 b/man2/s390_guarded_storage.2
index c20230786..af7ad5baf 100644
--- a/man2/s390_guarded_storage.2
+++ b/man2/s390_guarded_storage.2
@@ -112,7 +112,7 @@ is 0.
 .PP
 On error, \-1 is returned, and
 .IR errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/s390_sthyi.2 b/man2/s390_sthyi.2
index 91fc622bc..4da6c3a0a 100644
--- a/man2/s390_sthyi.2
+++ b/man2/s390_sthyi.2
@@ -99,7 +99,7 @@ The return values 1 and 2 are reserved.
 .PP
 On error, \-1 is returned, and
 .IR errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/sched_get_priority_max.2 b/man2/sched_get_priority_max.2
index 0f9fa258d..29b5fedcf 100644
--- a/man2/sched_get_priority_max.2
+++ b/man2/sched_get_priority_max.2
@@ -105,7 +105,7 @@ return the maximum/minimum priority value for the named scheduling
 policy.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/sched_rr_get_interval.2 b/man2/sched_rr_get_interval.2
index bce1ee0d3..e1adca4e5 100644
--- a/man2/sched_rr_get_interval.2
+++ b/man2/sched_rr_get_interval.2
@@ -78,7 +78,7 @@ On success,
 returns 0.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/sched_setaffinity.2 b/man2/sched_setaffinity.2
index 61bb7bb38..2dfb28589 100644
--- a/man2/sched_setaffinity.2
+++ b/man2/sched_setaffinity.2
@@ -114,7 +114,7 @@ which notes that the underlying
 differs in its return value).
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/sched_setparam.2 b/man2/sched_setparam.2
index 1bca5b48f..942584793 100644
--- a/man2/sched_setparam.2
+++ b/man2/sched_setparam.2
@@ -91,7 +91,7 @@ and
 return 0.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/sched_setscheduler.2 b/man2/sched_setscheduler.2
index 07bcf733d..2c7982a09 100644
--- a/man2/sched_setscheduler.2
+++ b/man2/sched_setscheduler.2
@@ -138,7 +138,7 @@ On success,
 returns the policy for the thread (a nonnegative integer).
 On error, both calls return \-1, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/sched_yield.2 b/man2/sched_yield.2
index 515fc0b83..ae112bb64 100644
--- a/man2/sched_yield.2
+++ b/man2/sched_yield.2
@@ -46,7 +46,7 @@ On success,
 returns 0.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 In the Linux implementation,
 .BR sched_yield ()
diff --git a/man2/send.2 b/man2/send.2
index fb3f83504..42fa5bf54 100644
--- a/man2/send.2
+++ b/man2/send.2
@@ -317,7 +317,7 @@ field is ignored.
 On success, these calls return the number of bytes sent.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 These are some standard errors generated by the socket layer.
 Additional errors
diff --git a/man2/sendfile.2 b/man2/sendfile.2
index 5e3380cb8..d2bffd011 100644
--- a/man2/sendfile.2
+++ b/man2/sendfile.2
@@ -112,7 +112,7 @@ See also NOTES.
 .PP
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EAGAIN
diff --git a/man2/set_thread_area.2 b/man2/set_thread_area.2
index 01cfdc0d9..eab3dec10 100644
--- a/man2/set_thread_area.2
+++ b/man2/set_thread_area.2
@@ -133,7 +133,7 @@ segments, although clearing a segment is still acceptable.
 On x86, these system calls
 return 0 on success, and \-1 on failure, with
 .I errno
-set appropriately.
+set to indicate the error.
 .PP
 On MIPS and m68k,
 .BR set_thread_area ()
diff --git a/man2/seteuid.2 b/man2/seteuid.2
index e402e1645..0bc20b268 100644
--- a/man2/seteuid.2
+++ b/man2/seteuid.2
@@ -67,7 +67,7 @@ with "group" instead of "user".
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 .IR Note :
 there are cases where
diff --git a/man2/setgid.2 b/man2/setgid.2
index 4135e8713..728b57398 100644
--- a/man2/setgid.2
+++ b/man2/setgid.2
@@ -58,7 +58,7 @@ effective group ID in a secure manner.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/setpgid.2 b/man2/setpgid.2
index 42b5b0a29..9a126c11e 100644
--- a/man2/setpgid.2
+++ b/man2/setpgid.2
@@ -194,7 +194,7 @@ and
 return zero.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 The POSIX.1
 .BR getpgrp ()
@@ -206,7 +206,7 @@ and the BSD-specific
 return a process group on success.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/setresuid.2 b/man2/setresuid.2
index 21d81c6ee..7d1a2af57 100644
--- a/man2/setresuid.2
+++ b/man2/setresuid.2
@@ -65,7 +65,7 @@ with the same restrictions for unprivileged processes.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 .IR Note :
 there are cases where
diff --git a/man2/setreuid.2 b/man2/setreuid.2
index fc85b8f13..90ca93a9a 100644
--- a/man2/setreuid.2
+++ b/man2/setreuid.2
@@ -95,7 +95,7 @@ and all of the above holds with "group" instead of "user".
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 .IR Note :
 there are cases where
diff --git a/man2/setuid.2 b/man2/setuid.2
index fa4636fcb..d8e461552 100644
--- a/man2/setuid.2
+++ b/man2/setuid.2
@@ -75,7 +75,7 @@ You can accomplish this with
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 .IR Note :
 there are cases where
diff --git a/man2/setxattr.2 b/man2/setxattr.2
index 02bc4014e..ebcfa4ded 100644
--- a/man2/setxattr.2
+++ b/man2/setxattr.2
@@ -110,7 +110,7 @@ which fails if the named attribute does not already exist.
 On success, zero is returned.
 On failure, \-1 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EDQUOT
diff --git a/man2/shmctl.2 b/man2/shmctl.2
index 3ff58f1e4..cf9ed4092 100644
--- a/man2/shmctl.2
+++ b/man2/shmctl.2
@@ -385,7 +385,7 @@ Other operations return 0 on success.
 .PP
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/shutdown.2 b/man2/shutdown.2
index 1c865be90..87d39f492 100644
--- a/man2/shutdown.2
+++ b/man2/shutdown.2
@@ -72,7 +72,7 @@ further receptions and transmissions will be disallowed.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man2/socket.2 b/man2/socket.2
index e780426ac..2a22567c7 100644
--- a/man2/socket.2
+++ b/man2/socket.2
@@ -418,7 +418,7 @@ are used to set and get options.
 On success, a file descriptor for the new socket is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/stat.2 b/man2/stat.2
index 2f46e03db..f40312490 100644
--- a/man2/stat.2
+++ b/man2/stat.2
@@ -368,7 +368,7 @@ for an explanation of the need for
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/statfs.2 b/man2/statfs.2
index a47bec9a9..83d0847fb 100644
--- a/man2/statfs.2
+++ b/man2/statfs.2
@@ -226,7 +226,7 @@ returns the same information about an open file referenced by descriptor
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/statx.2 b/man2/statx.2
index 9148fbbb0..9539ccb2b 100644
--- a/man2/statx.2
+++ b/man2/statx.2
@@ -496,7 +496,7 @@ for more information.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/stime.2 b/man2/stime.2
index 68ab8425f..4a9bb3dec 100644
--- a/man2/stime.2
+++ b/man2/stime.2
@@ -67,7 +67,7 @@ may be executed only by the superuser.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/swapon.2 b/man2/swapon.2
index f9c5d23d9..2e67229f0 100644
--- a/man2/swapon.2
+++ b/man2/swapon.2
@@ -114,7 +114,7 @@ but there are exceptions.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBUSY
diff --git a/man2/symlink.2 b/man2/symlink.2
index 387129e8b..38d51c82e 100644
--- a/man2/symlink.2
+++ b/man2/symlink.2
@@ -135,7 +135,7 @@ is ignored.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/sysfs.2 b/man2/sysfs.2
index a037d1c9d..6064efcc3 100644
--- a/man2/sysfs.2
+++ b/man2/sysfs.2
@@ -84,7 +84,7 @@ and the number of currently configured filesystems for option
 .BR 3 .
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/time.2 b/man2/time.2
index 3cc215339..4e140ae7d 100644
--- a/man2/time.2
+++ b/man2/time.2
@@ -47,8 +47,9 @@ the return value is also stored in the memory pointed to by
 .IR tloc .
 .SH RETURN VALUE
 On success, the value of time in seconds since the Epoch is returned.
-On error, \fI((time_t)\ \-1)\fP is returned, and \fIerrno\fP is set
-appropriately.
+On error, \fI((time_t)\ \-1)\fP is returned, and
+.I errno
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/times.2 b/man2/times.2
index f9a53d2be..eb5896a02 100644
--- a/man2/times.2
+++ b/man2/times.2
@@ -109,7 +109,7 @@ The return value may overflow the possible range of type
 .IR clock_t .
 On error, \fI(clock_t)\ \-1\fP is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/tkill.2 b/man2/tkill.2
index b505f2bbd..4b4eae312 100644
--- a/man2/tkill.2
+++ b/man2/tkill.2
@@ -91,7 +91,7 @@ thread library use.
 .SH RETURN VALUE
 On success, zero is returned.
 On error, \-1 is returned, and \fIerrno\fP
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EAGAIN
diff --git a/man2/truncate.2 b/man2/truncate.2
index 812469dbf..b9bcdcd4d 100644
--- a/man2/truncate.2
+++ b/man2/truncate.2
@@ -107,7 +107,7 @@ the file must be writable.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 For
 .BR truncate ():
diff --git a/man2/umount.2 b/man2/umount.2
index 7942df49a..6d0684149 100644
--- a/man2/umount.2
+++ b/man2/umount.2
@@ -113,7 +113,7 @@ programs that allow unprivileged users to unmount filesystems.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 The error values given below result from filesystem type independent
 errors.
diff --git a/man2/uname.2 b/man2/uname.2
index 897ba0e11..9491a2969 100644
--- a/man2/uname.2
+++ b/man2/uname.2
@@ -67,7 +67,7 @@ the fields are terminated by a null byte (\(aq\e0\(aq).
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/unlink.2 b/man2/unlink.2
index f683b5363..5f3125c14 100644
--- a/man2/unlink.2
+++ b/man2/unlink.2
@@ -148,7 +148,7 @@ for an explanation of the need for
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/uselib.2 b/man2/uselib.2
index 9c4ca5bf2..8896c1df6 100644
--- a/man2/uselib.2
+++ b/man2/uselib.2
@@ -54,7 +54,7 @@ binary format.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 In addition to all of the error codes returned by
 .BR open (2)
diff --git a/man2/userfaultfd.2 b/man2/userfaultfd.2
index 82ebf4e25..f1ef67468 100644
--- a/man2/userfaultfd.2
+++ b/man2/userfaultfd.2
@@ -422,7 +422,7 @@ On success,
 returns a new file descriptor that refers to the userfaultfd object.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man2/ustat.2 b/man2/ustat.2
index 25c28486f..d09a17845 100644
--- a/man2/ustat.2
+++ b/man2/ustat.2
@@ -73,7 +73,7 @@ structure pointed to by
 will be filled in.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man2/utime.2 b/man2/utime.2
index 24f397b1b..d3e894db3 100644
--- a/man2/utime.2
+++ b/man2/utime.2
@@ -124,7 +124,7 @@ set to the current time.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man2/vhangup.2 b/man2/vhangup.2
index fd88a2bca..6b197ef3a 100644
--- a/man2/vhangup.2
+++ b/man2/vhangup.2
@@ -59,7 +59,7 @@ users to have a \*(lqclean\*(rq terminal at login time.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EPERM
diff --git a/man2/vm86.2 b/man2/vm86.2
index 9b8c0ae1a..6ee81300e 100644
--- a/man2/vm86.2
+++ b/man2/vm86.2
@@ -56,7 +56,7 @@ VM86 mode is an emulation of real mode within a protected mode task.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man3/aio_fsync.3 b/man3/aio_fsync.3
index 3bfba5fc7..42191bc71 100644
--- a/man3/aio_fsync.3
+++ b/man3/aio_fsync.3
@@ -77,7 +77,7 @@ On success (the sync request was successfully queued)
 this function returns 0.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EAGAIN
diff --git a/man3/aio_read.3 b/man3/aio_read.3
index dcd45dd9e..c43c35729 100644
--- a/man3/aio_read.3
+++ b/man3/aio_read.3
@@ -92,7 +92,7 @@ On success, 0 is returned.
 On error, the request is not enqueued, \-1
 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 If an error is detected only later, it will
 be reported via
 .BR aio_return (3)
diff --git a/man3/aio_return.3 b/man3/aio_return.3
index cee4aab9a..062dce2cf 100644
--- a/man3/aio_return.3
+++ b/man3/aio_return.3
@@ -57,7 +57,7 @@ the value that would have been returned in case of a synchronous
 or
 .BR fdatasync (2),
 call.
-On error, \-1 is returned, and \fIerrno\fP is set appropriately.
+On error, \-1 is returned, and \fIerrno\fP is set to indicate the error.
 .PP
 If the asynchronous I/O operation has not yet completed,
 the return value and effect of
diff --git a/man3/aio_write.3 b/man3/aio_write.3
index 00aa180eb..91c35fc04 100644
--- a/man3/aio_write.3
+++ b/man3/aio_write.3
@@ -99,7 +99,7 @@ On success, 0 is returned.
 On error, the request is not enqueued, \-1
 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 If an error is detected only later, it will
 be reported via
 .BR aio_return (3)
diff --git a/man3/closedir.3 b/man3/closedir.3
index 3db634403..40747faeb 100644
--- a/man3/closedir.3
+++ b/man3/closedir.3
@@ -57,7 +57,7 @@ The
 function returns 0 on success.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man3/euidaccess.3 b/man3/euidaccess.3
index d922fc724..c79d5c8f9 100644
--- a/man3/euidaccess.3
+++ b/man3/euidaccess.3
@@ -62,7 +62,7 @@ On error (at least one bit in
 asked for a permission that is denied, or some other error occurred),
 \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 As for
 .BR access (2).
diff --git a/man3/fexecve.3 b/man3/fexecve.3
index 91a94b7c0..fbf226bf9 100644
--- a/man3/fexecve.3
+++ b/man3/fexecve.3
@@ -66,7 +66,7 @@ A successful call to
 never returns.
 On error, the function does return, with a result value of \-1, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 Errors are as for
 .BR execve (2),
diff --git a/man3/fpurge.3 b/man3/fpurge.3
index 50399212b..0472e8265 100644
--- a/man3/fpurge.3
+++ b/man3/fpurge.3
@@ -60,7 +60,7 @@ Upon successful completion
 returns 0.
 On error, it returns \-1 and sets
 .I errno
-appropriately.
+to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man3/fts.3 b/man3/fts.3
index 5c6f6decf..9bcc93849 100644
--- a/man3/fts.3
+++ b/man3/fts.3
@@ -561,7 +561,7 @@ returns
 NULL
 and sets
 .I errno
-appropriately.
+to indicate the error.
 If an error related to a returned file occurs, a pointer to an
 .I FTSENT
 structure is returned, and
@@ -630,7 +630,7 @@ returns
 NULL
 and sets
 .I errno
-appropriately.
+to indicate the error.
 .PP
 The
 .I FTSENT
diff --git a/man3/futimes.3 b/man3/futimes.3
index 8968aa76e..3a1686df1 100644
--- a/man3/futimes.3
+++ b/man3/futimes.3
@@ -66,7 +66,7 @@ instead, the timestamps of the symbolic link are changed.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 Errors are as for
 .BR utimes (2),
diff --git a/man3/getcontext.3 b/man3/getcontext.3
index 7259aab07..845466da0 100644
--- a/man3/getcontext.3
+++ b/man3/getcontext.3
@@ -151,7 +151,7 @@ returns 0 and
 does not return.
 On error, both return \-1 and set
 .I errno
-appropriately.
+to indicate the error.
 .SH ERRORS
 None defined.
 .SH ATTRIBUTES
diff --git a/man3/getdirentries.3 b/man3/getdirentries.3
index c756f8167..0deff6371 100644
--- a/man3/getdirentries.3
+++ b/man3/getdirentries.3
@@ -65,7 +65,7 @@ is updated with the new position after reading.
 returns the number of bytes read or zero when at the end of the directory.
 If an error occurs, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 See the Linux library source code for details.
 .SH ATTRIBUTES
diff --git a/man3/getentropy.3 b/man3/getentropy.3
index 7c1a2bd77..7e55e7628 100644
--- a/man3/getentropy.3
+++ b/man3/getentropy.3
@@ -60,7 +60,7 @@ always provides the requested number of bytes of entropy.
 On success, this function returns zero.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EFAULT
diff --git a/man3/getgrnam.3 b/man3/getgrnam.3
index ffd4b6d92..0f296fd24 100644
--- a/man3/getgrnam.3
+++ b/man3/getgrnam.3
@@ -139,7 +139,7 @@ structure, or NULL if the matching entry
 is not found or an error occurs.
 If an error occurs,
 .I errno
-is set appropriately.
+is set to indicate the error.
 If one wants to check
 .I errno
 after the call, it should be set to zero before the call.
diff --git a/man3/getifaddrs.3 b/man3/getifaddrs.3
index 8ce5ef85c..ba6301fba 100644
--- a/man3/getifaddrs.3
+++ b/man3/getifaddrs.3
@@ -144,7 +144,7 @@ On success,
 returns zero;
 on error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .BR getifaddrs ()
 may fail and set
diff --git a/man3/getpwent.3 b/man3/getpwent.3
index cfc3cc5eb..57df41b7d 100644
--- a/man3/getpwent.3
+++ b/man3/getpwent.3
@@ -107,7 +107,7 @@ structure, or NULL if
 there are no more entries or an error occurred.
 If an error occurs,
 .I errno
-is set appropriately.
+is set to indicate the error.
 If one wants to check
 .I errno
 after the call, it should be set to zero before the call.
diff --git a/man3/getpwnam.3 b/man3/getpwnam.3
index 922c160c0..45fde871d 100644
--- a/man3/getpwnam.3
+++ b/man3/getpwnam.3
@@ -145,7 +145,7 @@ structure, or NULL if the matching entry is not found or
 an error occurs.
 If an error occurs,
 .I errno
-is set appropriately.
+is set to indicate the error.
 If one wants to check
 .I errno
 after the call, it should be set to zero before the call.
diff --git a/man3/grantpt.3 b/man3/grantpt.3
index f949a7369..e60900515 100644
--- a/man3/grantpt.3
+++ b/man3/grantpt.3
@@ -47,7 +47,7 @@ When successful,
 returns 0.
 Otherwise, it returns \-1 and sets
 .I errno
-appropriately.
+to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man3/if_nameindex.3 b/man3/if_nameindex.3
index 93e9a7ed3..f6f59fcde 100644
--- a/man3/if_nameindex.3
+++ b/man3/if_nameindex.3
@@ -74,7 +74,7 @@ On success,
 returns pointer to the array;
 on error, NULL is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .BR if_nameindex ()
 may fail and set
diff --git a/man3/if_nametoindex.3 b/man3/if_nametoindex.3
index 232e415e7..d5abd21c0 100644
--- a/man3/if_nametoindex.3
+++ b/man3/if_nametoindex.3
@@ -56,7 +56,7 @@ On success,
 returns the index number of the network interface;
 on error, 0 is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 On success,
 .BR if_indextoname ()
@@ -64,7 +64,7 @@ returns
 .IR ifname ;
 on error, NULL is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .BR if_nametoindex ()
 may fail and set
diff --git a/man3/initgroups.3 b/man3/initgroups.3
index 114eff6a8..1293fd356 100644
--- a/man3/initgroups.3
+++ b/man3/initgroups.3
@@ -76,7 +76,7 @@ The
 function returns 0 on success.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B ENOMEM
diff --git a/man3/killpg.3 b/man3/killpg.3
index 0e2e95563..590403e45 100644
--- a/man3/killpg.3
+++ b/man3/killpg.3
@@ -86,7 +86,7 @@ For the permissions required to send a signal to another process, see
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man3/lockf.3 b/man3/lockf.3
index 7d1998ad4..5e8caa4e6 100644
--- a/man3/lockf.3
+++ b/man3/lockf.3
@@ -119,7 +119,7 @@ if another process holds a lock.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .BR EACCES " or " EAGAIN
diff --git a/man3/makecontext.3 b/man3/makecontext.3
index c0cf5f8a8..83720dd2c 100644
--- a/man3/makecontext.3
+++ b/man3/makecontext.3
@@ -92,8 +92,9 @@ activated, in which case it looks like
 returns 0.)
 On error,
 .BR swapcontext ()
-returns \-1 and
-sets \fIerrno\fP appropriately.
+returns \-1 and sets
+.I errno
+to indicate the error.
 .SH ERRORS
 .TP
 .B ENOMEM
diff --git a/man3/mkdtemp.3 b/man3/mkdtemp.3
index 1e364be4d..b0ba65af3 100644
--- a/man3/mkdtemp.3
+++ b/man3/mkdtemp.3
@@ -63,7 +63,7 @@ The
 function returns a pointer to the modified template
 string on success, and NULL on failure, in which case
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EINVAL
diff --git a/man3/mkstemp.3 b/man3/mkstemp.3
index 3ff554ccc..67b772e20 100644
--- a/man3/mkstemp.3
+++ b/man3/mkstemp.3
@@ -157,7 +157,7 @@ On success, these functions return the file descriptor
 of the temporary file.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EEXIST
diff --git a/man3/opendir.3 b/man3/opendir.3
index c748a71e3..fefc5a876 100644
--- a/man3/opendir.3
+++ b/man3/opendir.3
@@ -81,7 +81,7 @@ and
 functions return a pointer to the directory stream.
 On error, NULL is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man3/popen.3 b/man3/popen.3
index cea3d5472..f670acb25 100644
--- a/man3/popen.3
+++ b/man3/popen.3
@@ -157,7 +157,7 @@ or
 .BR pipe (2)
 fails,
 .I errno
-is set appropriately.
+is set to indicate the error.
 If the
 .I type
 argument is invalid, and this condition is detected,
diff --git a/man3/readdir.3 b/man3/readdir.3
index 408ea15c6..442d039ab 100644
--- a/man3/readdir.3
+++ b/man3/readdir.3
@@ -176,7 +176,7 @@ If the end of the directory stream is reached, NULL is returned and
 is not changed.
 If an error occurs, NULL is returned and
 .I errno
-is set appropriately.
+is set to indicate the error.
 To distinguish end of stream from an error, set
 .I errno
 to zero before calling
diff --git a/man3/remove.3 b/man3/remove.3
index 508c1fc8d..4b22053d3 100644
--- a/man3/remove.3
+++ b/man3/remove.3
@@ -63,7 +63,7 @@ but processes which have the object open may continue to use it.
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 The errors that occur are those for
 .BR unlink (2)
diff --git a/man3/rtime.3 b/man3/rtime.3
index 97ba72d93..6a5c2b8a6 100644
--- a/man3/rtime.3
+++ b/man3/rtime.3
@@ -38,7 +38,7 @@ On success, 0 is returned, and the obtained 32-bit time value is stored in
 .IR timep\->tv_sec .
 In case of error \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 All errors for underlying functions
 .RB ( sendto (2),
diff --git a/man3/statvfs.3 b/man3/statvfs.3
index e06ee6783..4f2788614 100644
--- a/man3/statvfs.3
+++ b/man3/statvfs.3
@@ -130,7 +130,7 @@ returns the same information about an open file referenced by descriptor
 On success, zero is returned.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EACCES
diff --git a/man3/tcgetpgrp.3 b/man3/tcgetpgrp.3
index ced798d26..219c9be8a 100644
--- a/man3/tcgetpgrp.3
+++ b/man3/tcgetpgrp.3
@@ -76,14 +76,14 @@ When
 does not refer to the controlling terminal of the calling process,
 \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .PP
 When successful,
 .BR tcsetpgrp ()
 returns 0.
 Otherwise, it returns \-1, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man3/tcgetsid.3 b/man3/tcgetsid.3
index ba452bc8f..e939a95bd 100644
--- a/man3/tcgetsid.3
+++ b/man3/tcgetsid.3
@@ -49,7 +49,7 @@ the function
 will return the session ID of this session.
 Otherwise, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man3/telldir.3 b/man3/telldir.3
index 3fac0ebbc..aa76bc877 100644
--- a/man3/telldir.3
+++ b/man3/telldir.3
@@ -60,7 +60,7 @@ function returns the current location
 in the directory stream.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF
diff --git a/man3/ttyname.3 b/man3/ttyname.3
index 1f8c36fdc..7dc3a75d5 100644
--- a/man3/ttyname.3
+++ b/man3/ttyname.3
@@ -54,7 +54,7 @@ The function
 returns a pointer to a pathname on success.
 On error, NULL is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 The function
 .BR ttyname_r ()
 returns 0 on success, and an error number upon error.
diff --git a/man3/ulimit.3 b/man3/ulimit.3
index d95564566..b6d0b3250 100644
--- a/man3/ulimit.3
+++ b/man3/ulimit.3
@@ -72,7 +72,7 @@ On success,
 returns a nonnegative value.
 On error, \-1 is returned, and
 .I errno
-is set appropriately.
+is set to indicate the error.
 .SH ERRORS
 .TP
 .B EPERM
diff --git a/man3/unlockpt.3 b/man3/unlockpt.3
index b7b34dff1..b08522e41 100644
--- a/man3/unlockpt.3
+++ b/man3/unlockpt.3
@@ -41,7 +41,7 @@ When successful,
 returns 0.
 Otherwise, it returns \-1 and sets
 .I errno
-appropriately.
+to indicate the error.
 .SH ERRORS
 .TP
 .B EBADF