Make these files compile with clang.

Submitted by:	Dimitry Andric <dimitry at andric.com>

contrib/tcp_wrappers/fix_options.c

@@ -34,6 +34,7 @@ static char sccsid[] = "@(#) fix_options.c 1.6 97/04/08 02:29:19";
 
 /* fix_options - get rid of IP-level socket options */
 
+void
 fix_options(request)
 struct request_info *request;
 {

contrib/top/screen.c

@@ -96,6 +96,7 @@ static int new_lword;
 #define	STDOUT	1
 #define	STDERR	2
 
+void
 init_termcap(interactive)
 
 int interactive;