[Midnightbsd-cvs] src: mport.c: show usage on list error

[laffer1 at midnightbsd.org]

Log Message:
-----------
show usage on list error

Modified Files:
--------------
    src/usr.sbin/mport:
        mport.c (r1.40 -> r1.41)
        (http://cvsweb.midnightbsd.org/src/usr.sbin/mport/mport.c?r1=1.40&r2=1.41)