[MERGE] Cope with the WWW-Authenticate header containing only a single word in

[John Arbash Meinel]

John Arbash Meinel has voted tweak.
Status is now: Conditionally approved
Comment:
It would be approve if you had a test case. (I think vila mentioned 
something about canned responses for an http server?)

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C20090218183808.2F515572E1%40charis.vernstok.nl.vernstok.nl%3E
Project: Bazaar