On 17 Aug 1999, Chris G. Demetriou wrote:
> This seems a little lame.  If we're going to reserve more, we ought to
> reserve 16 more groups (i.e. one more bit's worth).  reserving 6 more
> groups is silly, from where I sit.

I think we could expand the number of ptys without reserving
any more letters, by making the names longer.  Instead of
pty[p-zP-T][0-9a-f] we could have pty[p-zP-T][0-9a-f][0-9a-f].

--apb (Alan Barrett)