pkg/53456: chat/ircII crashes on joining to a channel with +k, with wrong channel key

[dmb%yenn.ulegend.net@localhost]

>Number:         53456
>Category:       pkg
>Synopsis:       chat/ircII crashes on joining to a channel with +k, with wrong channel key
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 17 01:30:00 +0000 2018
>Originator:     Dominik Bialy
>Release:        pkgsrc-current
>Organization:
Underlegend Networks
>Environment:
	all platforms I tested (Linux, various BSDs...)
	ircII-20170704
>Description:
	ircII crashes when attempting to join a channel with +k key set, and
	providing wrong channel key; this was observed on IRCnet ircd, I don't know
	wether it happens on other ircds.
>How-To-Repeat:
	/j #channel wrongkey
>Fix:
	unknown to me