Initialize storage modules magic element.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1462 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/storage_malloc.c

@@ -55,6 +55,7 @@ sma_alloc(struct stevedore *st, size_t size)
 	sma->s.space = size;
 	sma->s.fd = -1;
 	sma->s.stevedore = st;
+	sma->s.magic = STORAGE_MAGIC;
 	return (&sma->s);
 }