Title: #113: Adds an integration test for sssctl netgroup-show so that we don't
regress again like we did in ticket #3267.
I think you can use prefix "test_sssctl" instead of tests.
At the same time you can also mention ticket in commit message
. "Related to:" or "Test
See the full comment at https://github.com/SSSD/sssd/pull/113#issuecomment-270872234