added empty line

gluon/globals.py

@@ -549,6 +549,7 @@ class Session(Storage):
             # verify that session_id exists
             if not response.session_id:
                 return
+
             # verify if tablename was set or used in connect
             if response.session_table_name and tablename == 'web2py_session':
                 tablename = response.session_table_name