_syscall.2, accept.2, epoll_create.2, inotify_add_watch.2, ioctl.2, msgget.2, msgop.2, open.2, prctl.2, sched_setscheduler.2, semctl.2, semget.2, swapon.2, addseverity.3, cacosh.3, csqrt.3, dirfd.3, drand48.3, fputws.3, mq_send.3, posix_openpt.3, puts.3, sched_getcpu.3, shm_open.3, sqrt.3, sysconf.3, tgamma.3, ulimit.3, credentials.7, svipc.7: Global fix: s/non-negative/nonnegative/

The tendency in English, as prescribed in style guides like
Chicago MoS, is towards removing hyphens after prefixes
like "non-" etc.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man2/_syscall.2

@@ -97,7 +97,7 @@ You need to read the source to be sure how it will return errors.
 Usually, it is the negative of a standard error code,
 for example, \-\fBEPERM\fP.
 The _syscall() macros will return the result \fIr\fP of the system call
-when \fIr\fP is non-negative, but will return \-1 and set the variable
+when \fIr\fP is nonnegative, but will return \-1 and set the variable
 .I errno
 to \-\fIr\fP when \fIr\fP is negative.
 For the error codes, see

man2/accept.2

@@ -177,7 +177,7 @@ flag in
 for reasons why this may be useful.
 .SH "RETURN VALUE"
 On success,
-these system calls return a non-negative integer that is a descriptor
+these system calls return a nonnegative integer that is a descriptor
 for the accepted socket.
 On error, \-1 is returned, and
 .I errno

man2/epoll_create.2

@@ -83,7 +83,7 @@ for reasons why this may be useful.
 .SH "RETURN VALUE"
 On success,
 these system calls
-return a non-negative file descriptor.
+return a nonnegative file descriptor.
 On error, \-1 is returned, and
 .I errno
 is set to indicate the error.

man2/inotify_add_watch.2

@@ -80,7 +80,7 @@ the object for which the event occurred.
 .SH "RETURN VALUE"
 On success,
 .BR inotify_add_watch ()
-returns a non-negative watch descriptor.
+returns a nonnegative watch descriptor.
 On error \-1 is returned and
 .I errno
 is set appropriately.

man2/ioctl.2

@@ -83,7 +83,7 @@ Usually, on success zero is returned.
 A few
 .BR ioctl ()
 requests use the return value as an output parameter
-and return a non-negative value on success.
+and return a nonnegative value on success.
 On error, \-1 is returned, and
 .I errno
 is set appropriately.

man2/msgget.2

@@ -134,7 +134,7 @@ verified, and a check is made to see if it is marked for
 destruction.
 .SH "RETURN VALUE"
 If successful, the return value will be the message queue identifier (a
-non-negative integer), otherwise \-1
+nonnegative integer), otherwise \-1
 with
 .I errno
 indicating the error.

man2/msgop.2

@@ -79,7 +79,7 @@ The
 .I mtext
 field is an array (or other structure) whose size is specified by
 .IR msgsz ,
-a non-negative integer value.
+a nonnegative integer value.
 Messages of zero length (i.e., no
 .I mtext
 field) are permitted.

man2/open.2

@@ -67,7 +67,7 @@ Given a
 .I pathname
 for a file,
 .BR open ()
-returns a file descriptor, a small, non-negative integer
+returns a file descriptor, a small, nonnegative integer
 for use in subsequent system calls
 .RB ( read "(2), " write "(2), " lseek "(2), " fcntl "(2), etc.)."
 The file descriptor returned by a successful call will be

man2/prctl.2

@@ -327,7 +327,7 @@ On success,
 .BR PR_GET_SECUREBITS ,
 and (if it returns)
 .BR PR_GET_SECCOMP
-return the non-negative values described above.
+return the nonnegative values described above.
 All other
 .I option
 values return 0 on success.

man2/sched_setscheduler.2

@@ -367,7 +367,7 @@ On success,
 returns zero.
 On success,
 .BR sched_getscheduler ()
-returns the policy for the process (a non-negative integer).
+returns the policy for the process (a nonnegative integer).
 On error, \-1 is returned, and
 .I errno
 is set appropriately.

man2/semctl.2

@@ -343,7 +343,7 @@ with
 .I errno
 indicating the error.
 
-Otherwise the system call returns a non-negative value depending on
+Otherwise the system call returns a nonnegative value depending on
 .I cmd
 as follows:
 .TP 12

man2/semget.2

@@ -154,7 +154,7 @@ verified.
 .\" and a check is made to see if it is marked for destruction.
 .SH "RETURN VALUE"
 If successful, the return value will be the semaphore set identifier
-(a non-negative integer), otherwise \-1
+(a nonnegative integer), otherwise \-1
 is returned, with
 .I errno
 indicating the error.

man2/swapon.2

@@ -84,7 +84,7 @@ newer areas are even lower priority than older areas.
 All priorities set with
 .I swapflags
 are high-priority, higher than default.
-They may have any non-negative value chosen by the caller.
+They may have any nonnegative value chosen by the caller.
 Higher numbers mean higher priority.
 .PP
 Swap pages are allocated from areas in priority order,

man3/addseverity.3

@@ -42,7 +42,7 @@ is NULL, the severity class with the numeric value
 is removed.
 It is not possible to overwrite or remove one of the default
 severity classes.
-The severity value must be non-negative.
+The severity value must be nonnegative.
 .SH "RETURN VALUE"
 Upon success, the value
 .B MM_OK

man3/cacosh.3

@@ -25,7 +25,7 @@ The imaginary part of
 is chosen in the interval [\-pi,pi].
 The real part of
 .I y
-is chosen non-negative.
+is chosen nonnegative.
 .LP
 One has:
 .nf

man3/csqrt.3

@@ -16,7 +16,7 @@ csqrt, csqrtf, csqrtl \- complex square root
 Link with \fI\-lm\fP.
 .SH DESCRIPTION
 Calculate the square root of a given complex number,
-with non-negative real part, and
+with nonnegative real part, and
 with a branch cut along the negative real axis.
 (That means that \fIcsqrt(\-1+eps*I)\fP will be close to I while
 \fIcsqrt(\-1\-eps*I)\fP will be close to \-I, \fIif eps\fP is a small positive

man3/dirfd.3

@@ -53,7 +53,7 @@ It will be automatically closed when
 .BR closedir (3)
 is called.
 .SH RETURN VALUE
-On success, a non-negative file descriptor is returned.
+On success, a nonnegative file descriptor is returned.
 On error, \-1 is returned.
 .SH ERRORS
 POSIX.1-2008 specifies two errors,

man3/drand48.3

@@ -78,7 +78,7 @@ The
 .BR drand48 ()
 and
 .BR erand48 ()
-functions return non-negative
+functions return nonnegative
 double-precision floating-point values uniformly distributed between
 [0.0, 1.0).
 .PP
@@ -86,7 +86,7 @@ The
 .BR lrand48 ()
 and
 .BR nrand48 ()
-functions return non-negative
+functions return nonnegative
 long integers uniformly distributed between 0 and 2^31.
 .PP
 The

man3/fputws.3

@@ -36,7 +36,7 @@ For a non-locking counterpart, see
 The
 .BR fputws ()
 function returns a
-non-negative integer if the operation was
+nonnegative integer if the operation was
 successful, or \-1 to indicate an error.
 .SH "CONFORMING TO"
 C99, POSIX.1-2001.

man3/mq_send.3

@@ -60,7 +60,7 @@ Zero-length messages are allowed.
 
 The
 .I msg_prio
-argument is a non-negative integer that specifies the priority
+argument is a nonnegative integer that specifies the priority
 of this message.
 Messages are placed on the queue in decreasing order of priority,
 with newer messages of the same priority being placed after

man3/posix_openpt.3

@@ -62,7 +62,7 @@ Do not make this device the controlling terminal for the process.
 .SH "RETURN VALUE"
 On success,
 .BR posix_openpt ()
-returns a non-negative file descriptor which is the lowest
+returns a nonnegative file descriptor which is the lowest
 numbered unused descriptor.
 On failure, \-1 is returned, and
 .I errno

man3/puts.3

@@ -96,7 +96,7 @@ on error.
 .BR puts ()
 and
 .BR fputs ()
-return a non-negative number on success, or
+return a nonnegative number on success, or
 .B EOF
 on error.
 .SH "CONFORMING TO"

man3/sched_getcpu.3

@@ -45,7 +45,7 @@ returns the number of the CPU on which the calling thread is currently executing
 .SH RETURN VALUE
 On success,
 .BR sched_getcpu ()
-returns a non-negative CPU number.
+returns a nonnegative CPU number.
 On error, \-1 is returned and
 .I errno
 is set to indicate the error.

man3/shm_open.3

@@ -169,7 +169,7 @@ was specified, in which case a new, distinct object is created).
 .SH "RETURN VALUE"
 On success,
 .BR shm_open ()
-returns a non-negative file descriptor.
+returns a nonnegative file descriptor.
 On failure,
 .BR shm_open ()
 returns \-1.

man3/sqrt.3

@@ -59,7 +59,7 @@ _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE\ >=\ 600 || _ISOC99_SOURCE; or
 .SH DESCRIPTION
 The
 .BR sqrt ()
-function returns the non-negative square root of \fIx\fP.
+function returns the nonnegative square root of \fIx\fP.
 .SH "RETURN VALUE"
 On success, these functions return the square root of
 .IR x .

man3/sysconf.3

@@ -122,7 +122,7 @@ First, the POSIX.1 compatible values.
 .\" (if _POSIX_ASYNCHRONOUS_IO)
 .\" The maximum amount by which a process can decrease its
 .\" asynchronous I/O priority level from its own scheduling priority.
-.\" Must be non-negative.
+.\" Must be nonnegative.
 .TP
 .BR ARG_MAX " - " _SC_ARG_MAX
 The maximum length of the arguments to the

man3/tgamma.3

@@ -37,7 +37,7 @@ The Gamma function is defined by
     Gamma(x) = integral from 0 to infinity of t^(x\-1) e^\-t dt
 .sp
 It is defined for every real number except for non-positive integers.
-For non-negative integral \fIm\fP one has
+For nonnegative integral \fIm\fP one has
 .sp
     Gamma(m+1) = m!
 .sp

man3/ulimit.3

@@ -67,7 +67,7 @@ Return the maximum number of files that the calling process can open.
 .SH "RETURN VALUE"
 On success,
 .BR ulimit ()
-returns a non-negative value.
+returns a nonnegative value.
 On error, \-1 is returned, and
 .I errno
 is set appropriately.

man7/credentials.7

@@ -27,7 +27,7 @@
 credentials \- process identifiers
 .SH DESCRIPTION
 .SS Process ID (PID)
-Each process has a unique non-negative integer identifier
+Each process has a unique nonnegative integer identifier
 that is assigned when the process is created using
 .BR fork (2).
 A process can obtain its PID using

man7/svipc.7

@@ -220,7 +220,7 @@ semaphore belonging to the set.
 .TP
 .I sem_nsems
 Number of semaphores in the set.
-Each semaphore of the set is referenced by a non-negative integer
+Each semaphore of the set is referenced by a nonnegative integer
 ranging from
 .B 0
 to
@@ -242,7 +242,7 @@ struct sem {
 .in
 .TP 11
 .I semval
-Semaphore value: a non-negative integer.
+Semaphore value: a nonnegative integer.
 .TP
 .I sempid
 ID of the last process that performed a semaphore operation