Currently if you want to use kerberos with log-delete, it needs
to be handled in an external script.
We now have bkr.common.krb_auth module which we
should be able to use with log-delete to avoid dependencies
on external scripts.
Bulk reassignment of issues as Bill has moved to another team.
What we have now using kinit seems to be working okay. We can re-visit if the need arises.