4.1bsd vs. Versatec V80

[Dave Martindale]

This seems worth posting.  Configure your system for a "vp" in the kernel's
config file, and do a MAKE vp0 in /dev.  Then mv vp0 to va0.  Then use
vtroff, vpr, etc just as if you had a Varian.  All the user-level software
thinks it's dealing with the Varian plotter, but the device driver
actually invoked is the Versatec one.  You may want to go through and
correct "vpq" and the manual sections eventually, but this will get
you running.