Add missing assert

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1799 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/stevedore.c

@@ -112,6 +112,7 @@ STV_add(const char *spec)
 	xxxassert(q != NULL);
 
 	stv = malloc(sizeof *stv);
+	AN(stv);
 
 	if (!cmp_storage(&sma_stevedore, spec, p)) {
 		*stv = sma_stevedore;