Fix syntax error

Author: beamerblvd

mockredis/script.py

@@ -68,7 +68,7 @@ def _call(*call_args):
         def _error_reply(err):
             return self._python_to_lua({'err': err})
 
-        lua_globals.redis = {'call': _call, 'error_reply', _error_reply}
+        lua_globals.redis = {'call': _call, 'error_reply': _error_reply}
         return self._lua_to_python(lua.execute(self.script), return_status=True)
 
     @staticmethod