translation update

lib/plugins/extension/lang/zh/lang.php

@@ -3,6 +3,7 @@
 /**
  * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
  *
+ * @author lempel <riverlempel@hotmail.com>
  * @author Cupen <Cupenoruler@foxmail.com>
  * @author xiqingongzi <Xiqingongzi@Gmail.com>
  * @author qinghao <qingxianhao@gmail.com>
@@ -70,6 +71,7 @@ $lang['status_template']       = '模板';
 $lang['status_bundled']        = '内建';
 $lang['msg_enabled']           = '插件 %s 已启用';
 $lang['msg_disabled']          = '插件 %s 已禁用';
+$lang['msg_delete_success']    = '%s 扩展没有安装';
 $lang['msg_delete_failed']     = '卸载扩展 %s 失败';
 $lang['msg_template_install_success'] = '模板 %s 安装成功';
 $lang['msg_template_update_success'] = '模板 %s 更新成功';