Description of problem:

TL;DR:

The "vdsm-tool configure --module sanlock" command should NOT report success if it isn't able to add the sanlock users to the groups and instead should report a helpful error message.

LONG VERSION:

vdsm-tool configure --module sanlock

The above command is supposed to add the sanlock user to the qemu and kvm groups.

If kvm is coming from IDM, this command will NOT be able to add the sanlock user to the group, however, the command will still report success! 

I know it is not advisable to have system group in IDM, but for other complicated reasons it was.

The "vdsm-tool configure" command should NOT report success if it isn't able to add the sanlock users to the groups and instead should report a helpful error message.