correct description

src/lib/libc/string/index.3

@@ -31,7 +31,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: index.3,v 1.3 1997/07/10 23:54:34 millert Exp $
+.\"	$OpenBSD: index.3,v 1.4 1997/12/30 01:09:49 deraadt Exp $
 .\"
 .Dd April 19, 1991
 .Dt INDEX 3
@@ -54,9 +54,9 @@ locates the first character matching
 in the null-terminated string
 .Fa s .
 .Sh RETURN VALUES
-The character
+If the character
 .Fa c
-is returned if it is found; otherwise
+is found, a pointer to it is returned; otherwise
 .Dv NULL
 is returned.
 If

src/lib/libc/string/rindex.3

@@ -31,7 +31,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: rindex.3,v 1.2 1996/08/19 08:34:08 tholo Exp $
+.\"	$OpenBSD: rindex.3,v 1.3 1997/12/30 01:09:49 deraadt Exp $
 .\"
 .Dd April 19, 1991
 .Dt RINDEX 3
@@ -54,7 +54,7 @@ matching
 .Em char )
 in the null-terminated string
 .Fa s .
-The character c is returned if it is found; otherwise NULL is returned.
+If the character c is found, a pointer to it is returned; otherwise NULL is returned.
 If
 .Fa c
 is