Fix pubsubhubbub.

sigmavirus24 · sigmavirus24 · commit 24e5b533d205 · 2013-01-14T11:27:25.000-05:00
It shouldn't be using JSON but a form instead.
diff --git a/github3/repos.py b/github3/repos.py
@@ -1146,9 +1146,12 @@ def pubsubhubbub(self, mode, topic, callback, secret=''):
         status = False
         if mode and topic and callback and m:
             data = [('hub.mode', mode), ('hub.topic', topic),
-                    ('hub.callback', callback), ('hub.secret', secret)]
+                    ('hub.callback', callback)]
+            if secret:
+                data.append(('hub.secret', secret))
             url = self._build_url('hub')
-            status = self._boolean(self._post(url, data=dumps(data)), 204,
+            h = {'Content-Type': 'application/x-www-form-urlencoded'}
+            status = self._boolean(self._post(url, data=data, headers=h), 204,
                                    404)
         return status
 
