auto format

@@ -28,8 +28,6 @@ module.exports = () => {
 
             // memcached中session的key
             let cKey = `${config.sessionMemcachedPrefix}${req.sessionID}`,
-
-            // 用户信息session存储使用标志： true: memcached;false: cookie (只有当memcached不可用时)
                 uid = 0;
 
             yield cache.get(cKey).catch(err => {
@@ -42,7 +40,7 @@ module.exports = () => {
             });
 
             // 从 cookie 读取 UID
-            if (uid && req.cookies._UID && req.cookies._SESSION_KEY ) {
+            if (uid && req.cookies._UID && req.cookies._SESSION_KEY) {
 
                 let uidCookie = req.cookies._UID.split('::');