Nit: mark exit point.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1470 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishtop/varnishtop.c

@@ -199,5 +199,5 @@ main(int argc, char **argv)
 			TAILQ_INSERT_BEFORE(tp, tp2, list);
 		}
 	}
-	return (0);
+	exit(0);
 }