[Samba] Explain to me how this is correct...

[Zaphod Beeblebrox]

So... in the provision script, at some point after "self join" is printed,
we do:

smbd.set_simple_acl(file.name, 0755, gid)

.... where file.name is "/var/db/samba4/sysvol/tmpwXFu1C" and gid is 0 (at
least on FreeBSD).

the "OSError" here is a '-1' ... which is startlingly unhelpful.

... but the filesystem is zfs and acls of both posix and nfsv4 are working.

... having googled and tested several dozen ideas over the past day or so,
I'm relatively confident that somethings wrong with the test.