[Midnightbsd-cvs] mports: sites.mk: add CRITICAL mirrors

[laffer1 at midnightbsd.org]

Log Message:
-----------
add CRITICAL mirrors

Modified Files:
--------------
    mports/Mk/components:
        sites.mk (r1.19 -> r1.20)
        (http://cvsweb.midnightbsd.org/mports/Mk/components/sites.mk?r1=1.19&r2=1.20)