修改rss配置

@@ -50,7 +50,7 @@ const index = (req, res, next) => {
         return res.send(feed.render('rss-2.0'))
     });
 };
-const rss = (req, res, next, gmt = '') => {
+const rss = (req, res, next, gmt) => {
     let gender = req.query.gender || '1,2,3',
         items = [];
     res.setHeader('Content-Type', 'text/xml; charset=utf-8');