($y, $m) = ($1, $2);
} elsif (/^(\d{1,2})\W(\d{4})$/ || # 07-2004 or 7/2004
/^(\d)\W(\d\d)$/ || # 7/04
- /^(\d\d)\/(\d\d)$/) { # 07/04
+ /^(\d\d)\/?(\d\d)$/) { # 07/04 or 0704
($y, $m) = ($2, $1);
} else {
croak "Unable to parse expiration date: $str";