I posted a request previously for partyline ctcps (still no answer there), and I just found out that notices are NOT ctcps as I had previously thought, so I'm posting a second request here for the partyline to support sending notices to users.
partyline ctcp request link: https://sourceforge.net/tracker/?func=detail&aid=2788175&group_id=115828&atid=672824
Fixed in r1758