Mark this port deprecated. It has been stale upstream for ten years,
pretty much to the day and the last changes accepted were FreeBSD fixes
from my side. Plus it appears there are no users anywhere, including on
the FreeBSD side.

Put in an expiration date of nearly three months to see whether anyone
is interested in this after all.

On the way, separate the USES block in the Makefile [1] and adjust the
name of this port in pkg-descr.

Reported by: portlint [1]