Patch to make groff PAGE settable in make.conf
The attached rather trivial patch makes the groff build pick up a
preset PAGE variable if it exists so that groff can for example be built
and installed for A4 by default in European countries.
If it seems to be a good idea I'll work up a patch for the
make.conf manpage and /etc/defaults/make.conf documenting the PAGE variable.
 I finally got fed up with changing it by hand every time I do an