[PATCH] transaction: enable hardlink backups for non-windows systems

[Yuya Nishihara]

On Wed, 15 Feb 2017 20:34:32 +0000, Jeroen Vaelen wrote:
> Confidence in stable posix implementations could come from:
> 
> - hardlink backups being the default for nearly 10 years before the previously
>   mentioned patch disabled them after a series of bug reports coming
>   exclusively from Windows users.

No. This particular code path was introduced in 3.3-rc, and we got the bug
report soon after the release.