Noissue - Adapt best practices for trailing commas (sitescripts)

sitescripts/formmail/test/test_formmail.py

 # This file is part of the Adblock Plus web scripts,
 # Copyright (C) 2006-present eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ skipping 13 matching lines @@
 
 
 # We make this a fixture instead of a constant so we can modify it in each
 # test as needed without affecting other tests.
 @pytest.fixture
 def form_data():
     return {
         'name': 'John Doe',
         'email': 'john_doe@gmail.com',
         'subject': 'Hello there!',
-        'message': 'Once upon a time\nthere lived a king.'
+        'message': 'Once upon a time\nthere lived a king.',
     }
 
 
 @pytest.fixture()
 def response_for():
     host, port = 'test.local', 80
     urllib_intercept.install_opener()
     add_wsgi_intercept(host, port, lambda: handleRequest)
     url = 'http://{}:{}'.format(host, port)
 
@@ skipping 39 matching lines @@
 
 
 def test_success(response_for, form_data, mocker):
     sm_mock = mocker.patch('sitescripts.formmail.web.formmail.sendMail')
     assert response_for(form_data) == 'Message sent'
     assert sm_mock.call_count == 1
     params = sm_mock.call_args[0][1]
     assert set(params.keys()) == set(form_data.keys()) | {'time'}
     for key, value in form_data.items():
         assert params[key] == value