Too many bogus SVID versions out there, don't assert set_curs() return.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4972 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishtop/varnishtop.c

@@ -229,7 +229,7 @@ do_curses(struct VSM_data *vd)
 	AC(noecho());
 	AC(nonl());
 	AC(intrflush(stdscr, FALSE));
-	AC(curs_set(0));
+	(void)curs_set(0);
 	AC(erase());
 	for (;;) {
 		AZ(pthread_mutex_lock(&mtx));