Rewrite cvsup & portupgrade in C

[Garrett Wollman]

<<On Wed, 7 Jul 2004 22:56:17 -0400 (EDT), Wesley Morgan <morganw at chemikals.org> said:

> developers can make commits from a fresh install? I can imagine a similar 
> argument to this one taking place when cvs was imported.

CVS was Always There.  If there was a debate (among the half-dozen
original developers) about its inclusion, it took place before I
joined the project in 1993.

-GAWollman