Get sense of boolean test right way in second try

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@3195 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_vrt.c

@@ -498,7 +498,7 @@ VRT_r_server_ip(struct sess *sp)
 {
 
 	if (sp->mysockaddr->sa_family == AF_UNSPEC)
-		assert(getsockname(sp->fd, sp->mysockaddr, &sp->mysockaddrlen)
+		assert(!getsockname(sp->fd, sp->mysockaddr, &sp->mysockaddrlen)
 		    || errno == ECONNRESET);
 
 	return (sp->mysockaddr);