Improve the del_dns_domain tests
Improve the del_dns_domain tests

When deleting the aqd-unittest.ms.com domain fails, nothing really
indicates what kind of entries remained. Add an extra "search system"
command that should show the culprits in this case.

Reviewed-By: Scott DAquila <8944595b0f0af46f2d3de382b750727aac9e5fa7@ms.com>

stdweird/aquilon,stdweird/aquilon,guillaume-philippon/aquilon,quattor/aquilon,quattor/aquilon,stdweird/aquilon,quattor/aquilon,guillaume-philippon/aquilon,guillaume-philippon/aquilon