[Spoilers ahead.]
> A Question: is the `vs` request (which sets the vertical spacing)
> honored in nroff mode?
Yes.
> B. In nroff (or nroff mode in groff), what _units_ is the argument
> to the `vs` request reckoned in?
I remember .vs always being given in points, with a default v
*roff experts, I present to you another puzzler, not groff-specific.
Here's the qualifying question:
A. You probably know that the `ps` request to change the type (point)
size of the font is honored only in troff mode, not by nroff.
You likely also know that the `ls` request to set the
