When a client has different data in his or her copy of the Megapack techtree, the following warning message may show:
tomreyn: Techtree is different between client and server Megapack
This error message should be rewritten so that it makes more sense:
System: Warning: Techtree "Megapack" is different between client "tomreyn" and server.
In case this is not technically feasible, please use this format instead:
tomreyn: Warning: The following techtree is different between client and server: Megapack
I think this message is still used on head of trunk, too.