lint: Clean up E306 PEP-8 rule.

contrib_bots/bots/converter/tests.py

@@ -4,9 +4,11 @@ def test():
     for cmd, expected_response in sample_conversation():
         message = {'content': cmd, 'subject': 'foo',
                    'display_recipient': 'bar'}
+
         class ClientDummy(object):
             def __init__(self):
                 self.output = ''
+
             def send_message(self, params):
                 self.output = params['content']
         handler = converter.ConverterHandler()