err.c should use VARARGS, but doesn't unless either "SUN" or "ULTRIX" is
defined, since it uses vsprintf. There seems to be no easy portable documented
way to write this routine on systems that don't provide vsprintf! I think
it must be possible with something called "_doprnt", but it seems to be
completely undocumented.

I think getpar should work OK, at least as far as the non-sep parts go.
It seems to be consistent within itself, and the one interface to the
outside world, "getpar", is varargs. However I wouldn't be surprised
if this routine gave problems on some C compilers. Someone gave me
a re-write of the routine that was supposed to be kosher for Sun IV's,
but it core dumped on our Convex and Sun III's...

Bufpar.c isn't used in vplot, but it is used in many programs often
associated with vplot around Stanford that link to loclib, so I include it.
