[SCM] bitrig-ports branch master updated

[John C. Vernaleo]

Describe:  sync_20150323-10637-g4120f19
Commit:    4120f19fec73663d97fad7236399337d3db366b5

Modifications:
                INDEX               | 4 ++--
                net/irssi/Makefile  | 2 +-
                net/irssi/distinfo  | 4 ++--
                net/irssi/pkg/PLIST | 2 ++
                4 files changed, 7 insertions(+), 5 deletions(-)

Log messages:

Update irssi to 0.8.20 (a security release).
OK @Naabed-, @marco