Fixed #10141 -- Added a missing import to the complex Feed example. Thanks to Temoto for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9858 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/ref/contrib/syndication.txt

@@ -213,6 +213,7 @@ the feed.
 An example makes this clear. Here's the code for these beat-specific feeds::
 
     from django.contrib.syndication.feeds import FeedDoesNotExist
+    from django.core.exceptions import ObjectDoesNotExist
 
     class BeatFeed(Feed):
         def get_object(self, bits):