GitLab merge request 200 DNS related failure

[Jeremy Allison]

On Mon, Jan 21, 2019 at 11:44:50PM +0200, Isaac Boukris wrote:

> commit 4b4ae005b2029d55ad95809a535d13eb5ff51174
> Author: Volker Lendecke <vl at samba.org>
> Date:   Wed Jan 3 13:26:54 2018 +0100
> 
>     addns: Async ads_dns_lookup_srv

Yeah this isn't the problem. It's intermittent
but only on gitlab-ci, on no other platform (doesn't
reproduce locally or on sn-devel).

It's annoying but I believe timing related on gitlab-ci.
I've tried to debug this but haven't had any luck
so far.