trail conf = ircSpaces conf
             >> optional (char ':' >> Word8.takeWhile (not . isEndOfLine))
             <?> "message body"
trail conf = ircSpaces conf
             >> optional (char ':' >> Word8.takeWhile (not . isEndOfLine))
             <?> "message body"
trail conf = ircSpaces conf
             >> optional (char ':' >> Word8.takeWhile (not . isEndOfLine))
             <?> "message body"