### Please describe the problem.

I just added a new podcast to my feeds list and it is complaining of "bad feed content" when trying to import.

### What steps will reproduce the problem?

1. git-annex importfeed --fast http://redecentralize.org/podcast/feed.rss
3. see the sad error "warning: bad feed content"

### What version of git-annex are you using? On what operating system?

git-annex version: 4.20130827

### Please provide any additional information below.

[[!format sh """
greg@x200s:~/annex/Podcasts$ git-annex importfeed --fast http://redecentralize.org/podcast/feed.rss
(checking known urls...)
importfeed http://redecentralize.org/podcast/feed.rss 
--2013-09-09 15:05:17--  http://redecentralize.org/podcast/feed.rss
Resolving redecentralize.org (redecentralize.org)... 204.232.175.78
Connecting to redecentralize.org (redecentralize.org)|204.232.175.78|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 4331 (4.2K) [text/xml]
Saving to: ‘/tmp/feed12649’

100%[==============================================================>] 4,331       --.-K/s   in 0.08s   

2013-09-09 15:05:17 (56.0 KB/s) - ‘/tmp/feed12649’ saved [4331/4331]


  warning: bad feed content
ok
"""]]

> upstream bug <https://github.com/sof/feed/issues/5> ; [[done]] --[[Joey]]  
