* Allow erasing during the distro-sync
This is mainly for Oracle Linux but it will allow a lot more distro-syncs to be
successful instead of crapping out with the migration half done.
* Create migrate2rocky9 For migrating to Rocky Linux 9
* Simple 8 -> 9 swap to start off with.
* Update settings for Rocky Linux 9
* Don't attempt to exclude modules when we don't have any
If our exclude module list is empty don't attempt to disable the empty list.