Added missing kwargs to get_comment_create_data docs example

@@ -85,9 +85,9 @@ field::
     class CommentFormWithTitle(CommentForm):
         title = forms.CharField(max_length=300)
 
-        def get_comment_create_data(self):
+        def get_comment_create_data(self, **kwargs):
             # Use the data of the superclass, and add in the title field
-            data = super(CommentFormWithTitle, self).get_comment_create_data()
+            data = super(CommentFormWithTitle, self).get_comment_create_data(**kwargs)
             data['title'] = self.cleaned_data['title']
             return data