waring fix

applications/Demo/Bootstrap/BusinessWorker.php

@@ -210,7 +210,7 @@ class BusinessWorker extends Man\Core\SocketWorker
      * 关闭连接
      * @see Man\Core.SocketWorker::closeClient()
      */
-    protected function closeClient($fd)
+    protected function closeClient($fd = null)
     {
         // 清理$this->gatewayConnections对应项
         foreach($this->gatewayConnections as $addr => $con)

applications/Demo/Bootstrap/Gateway.php

@@ -667,7 +667,7 @@ class Gateway extends Man\Core\SocketWorker
      * 用户客户端关闭连接时触发
      * @see Man\Core.SocketWorker::closeClient()
      */
-    protected function closeClient($fd)
+    protected function closeClient($fd = null)
     {
         if($client_id = $this->getClientIdByFd($fd))
         {