I want to auto clean old distfiles no longer associated with new ports source.
first
# /usr/ports/infrastructure/bin/dpb -D HISTORY-ONLY
dpb begin fetch all distfiles and build packages!
I realize mistype PARAM HISTORY-ONLY instead of HISTORY_ONLY
then I press ctrl+c to break it.
and then
# /usr/ports/infrastructure/bin/dpb -D HISTORY_ONLY
now dpb will figure out old distfiles and update ${FULLDISTDIR}/history
at last
# /usr/ports/infrastructure/bin/clean-old-distfiles
so, dpb -D PARAM typo make me feel not well.
