Use '0' for base rather than 10 to allow for more flexible input bases.
Inspired by changes in PR 7402, but mostly redone by me to get past
bde filter.
Submitted by: Timo J. Rinne
PR: 7402
of the x11 based games. I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way. Bleah.
Submitted by: jkh