awk 7.10.23

[rodney]

Announcing awk version 7.10.23 for Interix (SFU & SUA).

To update do:

    pkg_update -L awk

This is an update of the "one true awk" maintained by BWK himself.
Most of the fixes since the last release don't seem to have tripped
anyone using Interix (or at least no one told me).