.Sh EXAMPLE -> .Sh EXAMPLES. Even if there's only one example, at least

this is consistent.

src/lib/libc/stdlib/getsubopt.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: getsubopt.3,v 1.4 2000/04/20 13:50:02 aaron Exp $
+.\" $OpenBSD: getsubopt.3,v 1.5 2000/12/15 14:31:17 aaron Exp $
 .\"
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -93,7 +93,7 @@ The argument
 will be set to point to the value portion of the token, or
 .Dv NULL
 if no value portion was present.
-.Sh EXAMPLE
+.Sh EXAMPLES
 .Bd -literal -compact
 char *tokens[] = {
 	#define	ONE	0