https://bugzilla.redhat.com/show_bug.cgi?id=951879
--- Comment #16 from Adam Williamson awilliam@redhat.com --- well, like I mentioned, the AU locale is clearly a top-down fork of the UK locale ;), so that would be the obvious one to choose when AU isn't available. But probably not worth bikeshedding this further.
i18n-bugs@lists.fedoraproject.org