DEC VT100/220 line wrapping semantics sought

[Lars Brinkhoff]

Mattias Engdegård wrote:
> Data for VT100, VT220 and VT510 have been collected, as well as
> several emulators
> (https://github.com/mattiase/wraptest/blob/master/results.txt). If
> anyone has access to other working terminals, VT3xx/VT4xx in
> particular, I'd be most grateful if you would take a few minutes to
> run the test program.

I have a VT420 set up for my kid to play with.  I'll borrow it and
submit a pull request with the results.