erc-handle-user-status-change
erc-handle-user-status-change is a compiled Lisp function in `erc.el
'.
(erc-handle-user-status-change TYPE NLH &optional L)
Handle changes in any user's status.
So far, only nick change is handled.
Generally, the TYPE argument is a symbol describing the change type, NLH is
a list containing the original nickname, login name and hostname for the user,
and L is a list containing additional TYPE-specific arguments.
So far the following TYPE/L pairs are supported:
Event TYPE L
nickname change 'nick (NEW-NICK)