Minor markup and wording fixes.

MFC after:	1 week

lib/libc/sys/getrlimit.2

@@ -28,7 +28,7 @@
 .\"     @(#)getrlimit.2	8.1 (Berkeley) 6/4/93
 .\" $FreeBSD$
 .\"
-.Dd August 19, 2015
+.Dd September 30, 2016
 .Dt GETRLIMIT 2
 .Os
 .Sh NAME
@@ -137,7 +137,7 @@ For example, if the RSS hard limit is exceeded, nothing happens.
 .Pp
 The
 .Vt rlimit
-structure is used to specify the hard and soft limits on a resource,
+structure is used to specify the hard and soft limits on a resource.
 .Bd -literal -offset indent
 struct rlimit {
 	rlim_t	rlim_cur;	/* current (soft) limit */
@@ -183,9 +183,9 @@ soft limit will cause the write to fail and a signal
 to be
 generated; this normally terminates the process, but may be caught.
 When
-the soft cpu time limit is exceeded, a signal
+the soft cpu time limit is exceeded, a
 .Dv SIGXCPU
-is sent to the
+signal is sent to the
 offending process.
 .Pp
 When most operations would allocate more virtual memory than allowed by the
@@ -198,7 +198,9 @@ A notable exception is stack extension, described above.
 If stack extension would allocate more virtual memory than allowed by the soft
 limit of
 .Dv RLIMIT_AS ,
-the signal SIGSEGV will be delivered.
+a
+.Dv SIGSEGV
+signal will be delivered.
 The caller is free to raise the soft address space limit up to the hard limit
 and retry the allocation.
 .Sh RETURN VALUES