[PATCH 57044] Use base64url in UNIQUE_ID

[Michael Kaufmann]

Hi,

in bug 57044, I proposed to use base64url for UNIQUE_ID. This means  
that the character '_' shall be used instead of '@', because '@' is  
not URL-safe. '_' is, and it may be used without percent-encoding in  
URLs, HTTP headers, or cookie values.

What do you think? Does anyone dare to commit the proposed patch (in  
trunk only) ?

Regards,
Michael