added blank line

Author: mansimarkaur

kinto_http/tests/functional.py

@@ -322,7 +322,7 @@ def test_single_record_can_overwrite(self):
         client.create_collection()
         created = client.create_record(data={'foo': 'bar'},
                                        permissions={'read': ['alexis']})
-        
+
         client.create_record(data={'id': created['data']['id'],
                                    'bar': 'baz'}, safe=False)