Here is a small patch to implement the 671 numeric, which is an extension of
RFC 2812 implemented by some IRC daemons. eg., http://ur1.ca/3khsr and
http://ur1.ca/3khrh

http://rishi.fedorapeople.org/gnu/0001-New-response-handler-for-671.patch

This numeric represents the RPL_WHOISSECURE message, which indicates whether
a user is using a secure connection or not.

Once the patch is deemed acceptable, I can send a Bazaar bundle as described in
http://www.emacswiki.org/emacs/BzrForEmacsCasualDevs

Happy hacking,
Debarshi