irc-rss-listener
----------------

Ping IRC on updates to RSS feeds.

Meant to be run in cron, irl.sh will read all the URLs
in /etc/irl/feeds and use sfeed(1) to parse them and
diff(1) to determine which ones are new (since the last run).
It then uses nc(1) to connect to the IRC server running on
localhost:6667 (which happens to be the case for our garbash
tilde).