[Midnightbsd-cvs] src: mport.1: document the download command

[laffer1 at midnightbsd.org]

Log Message:
-----------
document the download command

Modified Files:
--------------
    src/usr.sbin/mport:
        mport.1 (r1.5 -> r1.6)
        (http://cvsweb.midnightbsd.org/src/usr.sbin/mport/mport.1?r1=1.5&r2=1.6)