In the git version of CLDR v46.1, Acre's metazone inherits a generic
long name. However, root provides no metazone data for it to inherit.
So we ended up with an empty entry for Acre in the QlocaleXML file.
Harmless, but easy to avoid, so avoid it.
Pick-to: 6.9 6.8
Task-number: QTBUG-132851
Change-Id: I392d0922bebff731632e729a4931caa02dc3a404
Reviewed-by: Mate Barany <mate.barany@qt.io>
b60be8c14d