General mdoc(7) and typo fixes.

PR:		167713
Submitted by:	Nobuyuki Koganemaru (kogane!jp.freebsd.org)

lib/libc/compat-43/sigpause.2

@@ -62,7 +62,7 @@
 .Sy This interface is made obsolete by
 .Xr sigsuspend 2
 .Sy and
-.Xr sigaction 2
+.Xr sigaction 2 .
 .Pp
 The
 .Fn sigset
@@ -172,7 +172,8 @@ returns
 if the signal had been blocked and the signal's previous disposition if
 it had not been blocked.
 Otherwise,
-.Dv SIG_ERR is returned and
+.Dv SIG_ERR
+is returned and
 .Va errno
 set to indicate the error.
 .Pp

lib/libc/sys/ffclock.2

@@ -34,7 +34,7 @@
 .Nm ffclock_getcounter ,
 .Nm ffclock_getestimate ,
 .Nm ffclock_setestimate
-.Nd Retrieve feed-forward counter, get and set feed-forward clock estimates.
+.Nd Retrieve feed-forward counter, get and set feed-forward clock estimates
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
@@ -59,7 +59,7 @@ In the feed-forward context, a
 .Em timestamp
 is a cumulative value of the ticks of the timecounter, which can be converted
 into seconds by using the feed-forward
-.Em clock estimates.
+.Em clock estimates .
 .Pp
 The
 .Fn ffclock_getcounter

lib/libc/sys/ktrace.2

@@ -127,7 +127,7 @@ field gives the time (with microsecond resolution)
 that the record was generated.
 The
 .Va ktr_tid
-field holds a threadid.
+field holds a thread id.
 .Pp
 The generic header is followed by
 .Va ktr_len

lib/libc/sys/msgsnd.2

@@ -139,7 +139,7 @@ will fail if:
 The
 .Fa msqid
 argument
-is not a valid message queue identifier
+is not a valid message queue identifier.
 .Pp
 The message queue was removed while
 .Fn msgsnd

lib/libc/sys/pathconf.2

@@ -165,7 +165,7 @@ Returns 1 if a Mandatory Access Control (MAC) label can be set on the
 specified file, otherwise 0.
 .It Li _PC_MIN_HOLE_SIZE
 If a file system supports the reporting of holes (see
-.Xr lseek 2 ,
+.Xr lseek 2 ) ,
 .Fn pathconf
 and
 .Fn fpathconf

lib/libc/sys/rtprio.2

@@ -132,7 +132,8 @@ RTP_PRIO_NORMAL for normal priorities, and RTP_PRIO_IDLE for idle priorities.
 The priority specified by the
 .Va prio
 field ranges between 0 and
-.Dv RTP_PRIO_MAX (usually 31) .
+.Dv RTP_PRIO_MAX
+.Pq usually 31 .
 0 is the highest possible priority.
 .Pp
 Realtime and idle priority is inherited through fork() and exec().
@@ -149,7 +150,7 @@ Threads of equal real/idle priority are run round-robin.
 The
 .Fn rtprio
 system call
-will fail if
+will fail if:
 .Bl -tag -width Er
 .It Bq Er EINVAL
 The specified
@@ -175,7 +176,7 @@ The specified process or thread was not found or visible.
 .Xr setpriority 2 ,
 .Xr nice 3 ,
 .Xr renice 8 ,
-.Xr p_cansee 9 .
+.Xr p_cansee 9
 .Sh AUTHORS
 .An -nosplit
 The original author was

lib/libc/sys/setfib.2

@@ -95,7 +95,8 @@ system call is a
 .Fx
 extension however similar extensions
 have been added to many other
-.Ux style kernels.
+.Ux
+style kernels.
 .Sh HISTORY
 The
 .Fn setfib

lib/libc/sys/shm_open.2

@@ -88,7 +88,7 @@ already exists,
 then
 .Fn shm_open
 will fail with
-.Er EEXIST.
+.Er EEXIST .
 .Pp
 Newly created objects start off with a size of zero.
 If an existing shared memory object is opened with

lib/libc/sys/sigqueue.2

@@ -141,7 +141,7 @@ does not exist.
 The
 .Fn sigqueue
 system call conforms to
-.St -p1003.1-2004
+.St -p1003.1-2004 .
 .Sh HISTORY
 Support for
 .Tn POSIX

lib/libc/sys/timer_create.2

@@ -157,7 +157,7 @@ memory protection fault.
 The
 .Fn timer_create
 system call conforms to
-.St -p1003.1-2004
+.St -p1003.1-2004 .
 .Sh HISTORY
 Support for
 .Tn POSIX

lib/libc/sys/timer_delete.2

@@ -72,7 +72,7 @@ is not a valid timer ID.
 The
 .Fn timer_delete
 system call conforms to
-.St -p1003.1-2004
+.St -p1003.1-2004 .
 .Sh HISTORY
 Support for
 .Tn POSIX

lib/libc/sys/timer_settime.2

@@ -257,7 +257,7 @@ The
 and
 .Fn timer_settime
 system calls conform to
-.St -p1003.1-2004
+.St -p1003.1-2004 .
 .Sh HISTORY
 Support for
 .Tn POSIX

lib/libc/sys/unlink.2

@@ -157,7 +157,7 @@ In addition to the errors returned by the
 .Fn unlink ,
 the
 .Fn unlinkat
-may fail if
+may fail if:
 .Bl -tag -width Er
 .It Bq Er EBADF
 The