Comment out the line that sets User-Agent via add_headers

It seems that if you try to set the User-Agent via addheaders, as
suggested at the bottom of this page:

  http://docs.python.org/library/urllib2.html

... then it seems that redirections are no longer followed.

delicious-recent-summary

@@ -29,6 +29,8 @@ from collections import defaultdict
 # 302 redirection loop:
 cj = CookieJar()
 url_opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
+# url_opener.addheaders.append(('User-Agent',
+#                               'Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9.2.3) Gecko/20100423 Ubuntu/10.04 (lucid) Firefox/3.6.3 GTB7.1'))
 
 # An sqlite database that keeps track of which links have already been
 # reported, and when the triggering number of new links was last hit: