Fixed test (tests/experimental/setmulti_badserialize.phpt)

Author: laruence

Diff for: php_memcached.c

@@ -1786,7 +1786,7 @@ static void php_memc_setMulti_impl(INTERNAL_FUNCTION_PARAMETERS, zend_bool by_ke
 		}
 
 		if (!s_memc_write_zval (intern, MEMC_OP_SET, server_key, str_key, value, expiration)) {
-			php_error_docref(NULL, E_WARNING, "failed to set key %s", str_key->val);
+			php_error_docref(NULL, E_WARNING, "failed to set key %s", ZSTR_VAL(str_key));
 		}
 
 		if (!skey) {

Diff for: tests/experimental/setmulti_badserialize.phpt

@@ -42,6 +42,6 @@ try {
 var_dump($m->getByKey('kef', 'foo'));
 
 --EXPECT--
-
+Memcached::setMultiByKey(): failed to set key foo
 1234
 int(10)