[HEADS UP] ar(1) front-end committed. (notes for cross compile)

Hello list,

I just committed ar(1) front-end. Note that you NEED update your
world before you can successfully perform cross platform buildworld.

You can update your system by:
make buildworld
...
make installworld

or you can just install ar(1) by hand.
(replace /usr/bin/ar and /usr/bin/ranlib by hand)

This is needed because GNU Binutils ar and ranlib gets renamed to gar
and granlib, and when you perform a cross platform buildworld, the
build system will instead use /usr/bin/ar and /usr/bin/ranlib, which
is not capable of cross build.

Best Regards,
Kai