Minor change to llInstantMessage (LeTigre RC)

[Qie Niangao]

I doubt this affects anybody, but just in case: The maximum length of the llInstantMessage() payload was reduced from 1175 to 1024 bytes in the LeTigre RC yesterday. That will presumably go grid-wide when that RC is promoted. I added a temporary note to the wiki entry.

[Rolig Loon]

Thanks, Qie.  Good to know.