[CFT/RFC]: refactor bsd.prog.mk to understand multiple programs instead of a singular program

[Simon J. Gerraty]

On Fri, 26 Oct 2012 12:27:35 -0700, Garrett Cooper writes:
>There are some basic examples, but they're in my p4 branch and
>unfortunately they depend on atf.test.mk/bsd.test.mk/bsd.progs.mk

Speaking of which.  I notice there is now a bsd.progs.mk in head, which
bears little relationship to the one I was talking about (from
devel/bmake).  Is this bsd.progs.mk essentially your port of netbsd's
bsd.prog.mk it seems much more complex than should be necessary (my
progs.mk is 75 lines vs 350 for the one in head).
Would you be awfully upset if I replace it with the simpler one?