Wrap source lines at sentence breaks.

man1/ldd.1

@@ -43,7 +43,8 @@ Usage information.
 .SH NOTES
 The standard version of
 .B ldd
-comes with glibc2. Libc5 came with an older version, still present
+comes with glibc2.
+Libc5 came with an older version, still present
 on some systems. The long options are not supported by the libc5 version.
 On the other hand, the glibc2 version does not support
 .B \-V

man2/execve.2

@@ -444,8 +444,8 @@ With Unix V6 the argument list of an
 call was ended by 0,
 while the argument list of
 .I main
-was ended by \-1. Thus, this
-argument list was not directly usable in a further
+was ended by \-1.
+Thus, this argument list was not directly usable in a further
 .BR exec ()
 call.
 Since Unix V7 both are NULL.

man2/io_submit.2

@@ -53,8 +53,9 @@ on failure, it returns one of the errors listed under ERRORS.
 .TP
 .B EINVAL
 The \fIaio_context\fR specified by \fIctx_id\fR is invalid.
-\fInr\fR is less than 0. The \fIiocb\fR at *iocbpp[0] is not properly
-initialized, or the operation specified is invalid for the file descriptor
+\fInr\fR is less than 0.
+The \fIiocb\fR at *iocbpp[0] is not properly initialized,
+or the operation specified is invalid for the file descriptor
 in the \fIiocb\fR.
 .TP
 .B EFAULT

man2/llseek.2

@@ -57,7 +57,8 @@ It returns the resulting file position in the argument
 .SH "RETURN VALUE"
 Upon successful completion,
 .BR _llseek ()
-returns 0. Otherwise, a value of \-1 is returned and
+returns 0.
+Otherwise, a value of \-1 is returned and
 .I errno
 is set to indicate the error.
 .SH ERRORS

man2/msgctl.2

@@ -321,7 +321,8 @@ In the future these may modified or moved to a /proc file system
 interface.
 
 Various fields in the \fIstruct msqid_ds\fP were shorts under Linux 2.2
-and have become longs under Linux 2.4. To take advantage of this,
+and have become longs under Linux 2.4.
+To take advantage of this,
 a recompilation under glibc-2.1.91 or later should suffice.
 (The kernel distinguishes old and new calls by an IPC_64 flag in
 .IR cmd .)

man2/msgop.2

@@ -388,7 +388,8 @@ SVr4, POSIX.1-2001.
 The
 .I msgp
 argument is declared as \fIstruct msgbuf *\fP with
-libc4, libc5, glibc 2.0, glibc 2.1. It is declared as \fIvoid *\fP
+libc4, libc5, glibc 2.0, glibc 2.1.
+It is declared as \fIvoid *\fP
 with glibc 2.2 and later, as required by SUSv2 and SUSv3.
 
 The following limits on message queue resources affect the

man2/semctl.2

@@ -471,7 +471,8 @@ In the future these may modified or moved to a /proc file system
 interface.
 .LP
 Various fields in a \fIstruct semid_ds\fP were shorts under Linux 2.2
-and have become longs under Linux 2.4. To take advantage of this,
+and have become longs under Linux 2.4.
+To take advantage of this,
 a recompilation under glibc-2.1.91 or later should suffice.
 (The kernel distinguishes old and new calls by an IPC_64 flag in
 .IR cmd .)

man3/aio_fsync.3

@@ -58,7 +58,8 @@ asynchronous notification at completion.
 All other fields are ignored.
 .SH "RETURN VALUE"
 On success (the sync request was successfully queued)
-this function returns 0. On error \-1 is returned, and
+this function returns 0.
+On error \-1 is returned, and
 .I errno
 is set appropriately.
 .SH ERRORS

man3/aio_suspend.3

@@ -55,7 +55,8 @@ If CLOCK_MONOTONIC is supported, this clock is used to measure
 the timeout interval.
 .SH "RETURN VALUE"
 If this function returns after completion of one of the indicated
-requests, it returns 0. Otherwise it returns \-1 and sets
+requests, it returns 0.
+Otherwise it returns \-1 and sets
 .I errno
 appropriately.
 .SH ERRORS

man3/grantpt.3

@@ -28,7 +28,8 @@ is unspecified if a signal handler is installed to catch SIGCHLD signals.
 .SH "RETURN VALUE"
 When successful,
 .BR grantpt ()
-returns 0. Otherwise, it returns \-1 and sets
+returns 0.
+Otherwise, it returns \-1 and sets
 .I errno
 appropriately.
 .SH ERRORS

man3/tcgetpgrp.3

@@ -72,7 +72,8 @@ is set appropriately.
 .LP
 When successful,
 .BR tcsetpgrp ()
-returns 0. Otherwise, it returns \-1, and
+returns 0.
+Otherwise, it returns \-1, and
 .I errno
 is set appropriately.
 .SH ERRORS

man3/unlockpt.3

@@ -24,7 +24,8 @@ should be called before opening the slave side of a pty.
 .SH "RETURN VALUE"
 When successful,
 .BR unlockpt ()
-returns 0. Otherwise, it returns \-1 and sets
+returns 0.
+Otherwise, it returns \-1 and sets
 .I errno
 appropriately.
 .SH ERRORS

man3/wcwidth.3

@@ -27,7 +27,8 @@ function returns the number of columns
 needed to represent the wide character \fIc\fP.
 If \fIc\fP is a printable wide character, the value
 is at least 0.
-If \fIc\fP is L'\\0', the value is 0. Otherwise \-1 is returned.
+If \fIc\fP is L'\\0', the value is 0.
+Otherwise \-1 is returned.
 .SH "RETURN VALUE"
 The
 .BR wcwidth ()