Fixed a typo

lib/auth.js

@@ -83,9 +83,8 @@ function verifySSAPlugin() {
         var _user = req.params._user;
         var email = null;
         if (_user && !(email = verifySSA(_user))) {
-                res.json(403, {error: 'bad_user'});
+            res.json(403, {error: 'bad_user'});
-                return;
+            return;
-            }
         }
         req._email = email;