Correct test for Django 1.8+

Author: dcramer

tests/contrib/django/management/commands/test_raven.py

@@ -14,7 +14,7 @@
 class RavenCommandTest(TestCase):
     @patch('raven.contrib.django.management.commands.raven.send_test_message')
     def test_basic(self, mock_send_test_message):
-        call_command('raven', command='test')
+        call_command('raven', 'test')
 
         mock_send_test_message.assert_called_once_with(
             client, {