backing as long as they apply to all. I refuse to obey a particular policy --
that of automatic bumping PORTREVISION of all ports lib-depending on mine.
It is no longer possible to leave obeying a disagreable policy to those, who
finds it acceptable, either -- portmgr gets really angry, threatening backouts
and commit-bit suspensions.
I thus have no other option but to relinquish maintainership of ports, which
install shared libraries, which any other ports depend on -- starting with
GraphicsMagick.