Log Message:
Update chat/irssi to 0.8.16.
PR pkg/48866 from Leonardo Taccari

Changes (from http://www.irssi.org/news/ChangeLog ):
Features:
 * Add -noautosendcmd to /SERVER and /CONNECT. Passing this option will
   force Irssi to not execute the content of the autosendcmd
   chatnet-setting upon connect.
 * Accept names replies with nick!user@host instead of just nick, if they
   are enabled (see bug #805).
 * Set window binds for channel items as sticky when re-creating window
   binds as part of /layout save. This fixes the bug where previously
   saved channel windows forgets their window number upon reconnect.
 * Add experimental support for DNSSEC DANE validation of certificates.
 * Strip the argument for boolean options (see bug #769).
 * Freenode have been readded to the list of networks in the default
   configuration file.
 * Disabled support for the insecure SSLv2 protocol.
 * Various documentation enhancements.
 * Add -ssl_pass to /connect and /server (see bug #305).

Bugfixes:
 * Fix crashing bug that can happen if the terminal height decreases
   before the first window is created.
 * Fixed minor compiler warnings.
 * Fixed possible crashing bug when processing an octal escape sequence.
 * Fixed the /ignore -network option (see bug #748).
 * Fixed signal handling for /exec'd commands. Irssi now sends the signal
   to the process group id instead of the process id.
 * Fixed segfault generated by SSL disconnections (see bug #752).
 * Fix compilation when build with -Werror=format-security. Patch by
   Jaroslav Skarvada.