+ /**
+ * Really format a diff for the newsfeed
+ *
+ * @param $title Title object
+ * @param $oldid Integer: old revision's id
+ * @param $newid Integer: new revision's id
+ * @param $timestamp Integer: new revision's timestamp
+ * @param $comment String: new revision's comment
+ * @param $actiontext String: text of the action; in case of log event
+ * @return String
+ */