FindBugs code cleanups (2/13) - IrcMessage.
FindBugs code cleanups (2/13) - IrcMessage.

IrcMessage: e2b4317980429682d2a7e6a24f45e2340146cc87@Override annotations.

justjanne/QuasselDroid,zhaofengli/QuasselDroid,schaal/QuasselDroid