Sets a new function to be used for print() output.
The print handler is called by the print(...) function, with all arguments passed along.
See also Debugging and Profiling functions.
Signature:
setprinthandler(printHandler)
Arguments:
printHandler- The function to use as the print handler (function)
This function is defined by the default user interface in Lua. You can find the definition by examining the FrameXML code for the default UI,