autowrap

[Rick Adams]

> >4.3BSD keeps screen width information somewhere in its tty data
> >structures.
> 
> Unfortunately they're only set while a window manager is in control.
> The standard login sequence really ought to set up this data as well
> as the TERM environment variable.  But then, it may not be wise to
> make login depend on termcap either.

The 4.3bsd tset program sets the rows&columns if they aren't already set.
This is probably the place to do it, as it's already mucking around with
terminal types, etc.

--rick