ircutils: add $network to standard substitutions

src/ircutils.py

@@ -824,6 +824,7 @@ def standardSubstitute(irc, msg, text, env=None):
     if irc:
         vars.update({
             'botnick': irc.nick,
+            'network': irc.network,
             })
 
     if msg:

test/test_ircutils.py

@@ -219,6 +219,8 @@ class FunctionsTestCase(SupyTestCase):
         msg = ircmsgs.IrcMsg(':%s PRIVMSG #channel :stuff' % self.hostmask)
         class Irc(object):
             nick = 'bob'
+            network = 'testnet'
+
         irc = Irc()
 
         f = ircutils.standardSubstitute