物流查询bug修改

@@ -35,7 +35,7 @@ class Express
      */
     public function subscribe($data = [], $orderExpress = null, $order = null)
     {
-        $requestData = $this->getRequestData($data, $orderExpress = null, $order = null);
+        $requestData = $this->getRequestData($data, $orderExpress = null, $order);
 
         $datas = [
             'EBusinessID' => $this->config['ebusiness_id'],