[PATCH] Update WHATSNEW.txt with VFS ABI changes for 4.9.0.

[Kai Blin]

On Thu, 2018-06-07 at 00:49 -0700, Jeremy Allison via samba-technical
wrote:
> Hopefully self explainatory. Please review and push if happy !

LGTM, pushed to autobuild with my RB tag.

Cheers,
Kai

-- 
Kai Blin         @kaiblin
Samba Developer  http://samba.team