Bump port-epoch after an attempted update to support the new revision of
the data files had to be reverted. The new file format is incompatible
and no longer suitable for quick lookup of the password hashes. Sorting
the 30 GB file into a usable form took more than 4 hours on my system,
which seems impractical. The port will therefore stay on the level of the
"old" data files.

Approved by: antoine (implicit)