Fix typo and add missing vfs_zfsacl manpage

[Uri Simchoni]

On 11/28/2017 11:00 AM, Volker Lendecke via samba-technical wrote:
> On Mon, Nov 27, 2017 at 02:20:19PM +0100, Timur I. Bakeyev via samba-technical wrote:
>> Can one of the developers review this fixes, please?
> 
> I would have avoided reordering docs-xml/wscript, but you for sure
> have your good reasons for this, and it does not destroy anything.
> 
> RB+.
> 
> Volker
> 

RB+

If you want this back-ported (because both the build omission and the
phrasing can be considered as bugs), please:
1. open a bug in bugzilla
2. split the patch into 3 commits:
a. Fixing the manpage
b. Fixing the build
c. sort (only for master)

I don't insist because it's almost or entirely FreeBSD-specific, and you
folks seem to have your own methods of delivering backports.

Will push tomorrow either way.

Thanks,
Uri