[Midnightbsd-cvs] mports: bsd.port.mk: remove cvs tag that's irrelevant.

[laffer1 at midnightbsd.org]

Log Message:
-----------
remove cvs tag that's irrelevant.

Modified Files:
--------------
    mports/Mk:
        bsd.port.mk (r1.20 -> r1.21)
        (http://cvsweb.midnightbsd.org/mports/Mk/bsd.port.mk?r1=1.20&r2=1.21)