url-digest-auth doesn't work with Apache 2.2.3 and AUTH Digest

[John Wiegley]

Hello, I just found out why url.el was unable to access pages on my  
Apache 2.2.3 server which uses HTTP Digest.  The reason is that url- 
digest-auth always passes an "opaque" value, even if no "opaque" was  
presented by the server.

Attached is the corrected version of the function, which could  
probably be written much nicer, but at least works now.

John

url-digest-auth.el
Description: Binary data