> My point was not "compatibility over all" but "do not break
> existing scripts". The .em case is just an example,
I'm quite sure that this change won't break any scripts if they have
relied on the groff documentation.
> I'd also hoped for upward compatibility as newer versions of groff
> appear
My point was not "compatibility over all" but "do not break
existing scripts". The .em case is just an example, but as
until recently the only doc of non-groff requests was the AT&T
Bell Labs published Unix books (my troff "bible"), I believed
that unless stated otherwise (or discovered by experim