m4 complains about undocumented, unimplemented functions

[Thomas M. Breuel]

> I was using m4 to process some text (/lib/cpp wasn't working right for some
> reason), and the text had the word `shift' in it.  M4 told me "shift: not
> implemented yet".  I just put it in m4 quotes (`'), and it worked fine, but

Well, I needed 'shift' and '$*' for 'S'. It takes about 5' to implement them.
I don't know why anyone bothered putting in the printf's... If you need 
the diffs, mail me a letter.

							Thomas.