Comment 1 for bug 1076813

Does HTTP 400 make sense for this test?

quantum/quantum/tests/unit/test_db_plugin.py, line 602:
    def test_update_invalid_json_400(self):
        with self.network() as net:
            req = self.new_update_request('networks',
                                          '{{"name": "aaa"}}',
                                          net['network']['id'])
            res = req.get_response(self.api)
            self.assertEqual(res.status_int, 400)