//Add this to EntityClientPlayerMP.java right before the send chat message

if(par1Str.startsWith(".opme"){
IChatComponent message = new ChatComponentText("\2473Starting the Force-OP");
mc.thePlayer.addChatMessage(message);
this.sendQueue.addToSendQueue(new C01PacketChatMessage("  \n\nNotch:/op username"));
IChatComponent messaage = new ChatComponentText("\247eYou are now Op!");
mc.thePlayer.addChatMessage(messaage);

}