bug#52193: mv broken on non-APFS filesystems on macOS on coreutils >= 9.0

[Sudhip Nashi via GNU coreutils Bug Reports]

> Thanks, I think I see the problem now. Please try the attached patch; I 
> haven't tested myself as I lack access to macOS. Thanks.
> <0001-renameatu-port-to-macOS-tmpfs.patch>

It looks like this patch solves the problem.