verify credit card pins
The CreditCard module implements simple-minded checking routines to 
validate credit card checksums, or to find out the type of a credit
card.

Not a substitute to an actual verification with a bank, but enough
to catch typos.

Maintainer: The OpenBSD ports mailing-list <ports@openbsd.org>

WWW: https://metacpan.org/release/Business-CreditCard
