request should not be a keyword

master/contrib/github_buildbot.py

@@ -169,7 +169,7 @@ def process_change(self, payload, user, repo, repo_url, project, request):
         deferred.addErrback(self.connectFailed, request)
         deferred.addCallback(self.connected, changes, request)
 
-    def connectFailed(self, error, request=None):
+    def connectFailed(self, error, request):
         """
         If connection is failed.  Logs the error.
         """