===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/m4/m4.1,v
retrieving revision 1.65
retrieving revision 1.66
diff -u -r1.65 -r1.66
--- src/usr.bin/m4/m4.1	2021/03/08 02:47:28	1.65
+++ src/usr.bin/m4/m4.1	2022/03/31 17:27:25	1.66
@@ -1,4 +1,4 @@
-.\"	@(#) $OpenBSD: m4.1,v 1.65 2021/03/08 02:47:28 jsg Exp $
+.\"	@(#) $OpenBSD: m4.1,v 1.66 2022/03/31 17:27:25 naddy Exp $
 .\"
 .\" Copyright (c) 1989, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -30,7 +30,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: March 8 2021 $
+.Dd $Mdocdate: March 31 2022 $
 .Dt M4 1
 .Os
 .Sh NAME
@@ -74,7 +74,7 @@
 parenthesis
 .Pq Sq \&( .
 If the macro name is not followed by an open
-parenthesis it is processed with no arguments.
+parenthesis, it is processed with no arguments.
 .Pp
 Macro names consist of a leading alphabetic or underscore
 possibly followed by alphanumeric or underscore characters, e.g.,
@@ -332,7 +332,7 @@
 .Ic index(the quick brown fox jumped, fox)
 returns 16).
 If the second
-argument is not found index returns \-1.
+argument is not found, index returns \-1.
 .It Fn indir macro arg1 ...
 Indirectly calls the macro whose name is passed as the first argument,
 with the remaining arguments passed as first, ... arguments.
@@ -412,7 +412,7 @@
 .It Fn substr string offset length
 Returns a substring of the first argument starting at the offset specified
 by the second argument and the length specified by the third argument.
-If no third argument is present it returns the rest of the string.
+If no third argument is present, it returns the rest of the string.
 .It Fn syscmd cmd
 Passes the first argument to the shell.
 Nothing is returned.