Comment 16 for bug 1764668

As described in testcases I set up a few guests and made sure some of them won't shutdown properly. We want to see
1. all tried to shut down
2. waiting up until timeout for the one that does not shut down

## Pre-Fix ##

Xenial:
sudo /usr/lib/libvirt/libvirt-guests.sh stop

Running guests on default URI: b4, b1, b2, b3
Shutting down guests on default URI...
Starting shutdown on guest: b4
Starting shutdown on guest: b1
Waiting for 4 guests to shut down, 120 seconds left
Failed to determine state of guest: 83964d03-0d3b-47c3-a17d-fd104e2511f8. Not tracking it anymore.
Failed to determine state of guest: 9f11ae0c-b73b-4d4b-abdb-b9acda341e84. Not tracking it anymore.
Shutdown of guest b4 complete.
Shutdown of guest b1 complete.
Starting shutdown on guest: b2
Starting shutdown on guest: b3
Shutdown of guest b2 complete.
Shutdown of guest b3 complete.
root@x:~# virsh list
 Id Name State
----------------------------------------------------
 5 b4 running
 6 b1 running
 7 b2 running
 8 b3 running

Artful:
# sudo /usr/lib/libvirt/libvirt-guests.sh stop

Running guests on default URI: b1, b2, b3, b4
Shutting down guests on default URI...
Starting shutdown on guest: b1
Starting shutdown on guest: b2
Waiting for 4 guests to shut down, 120 seconds left
Failed to determine state of guest: 80ba5ac4-fb68-4ee7-b8d6-313313f29ab4. Not tracking it anymore.
Failed to determine state of guest: 688847ca-5510-462d-ae5e-988d322d1471. Not tracking it anymore.
Shutdown of guest b1 complete.
Shutdown of guest b2 complete.
Starting shutdown on guest: b3
Starting shutdown on guest: b4
Shutdown of guest b3 complete.
Shutdown of guest b4 complete.
root@a:~# virsh list
 Id Name State
----------------------------------------------------
 1 b1 running
 4 b4 running

#### With the fixes from proposed ####

libvirt-bin/artful-proposed 3.6.0-1ubuntu6.6 amd64 [upgradable from: 3.6.0-1ubuntu6.5]
libvirt-clients/artful-proposed 3.6.0-1ubuntu6.6 amd64 [upgradable from: 3.6.0-1ubuntu6.5]
libvirt-daemon/artful-proposed 3.6.0-1ubuntu6.6 amd64 [upgradable from: 3.6.0-1ubuntu6.5]
libvirt-daemon-system/artful-proposed 3.6.0-1ubuntu6.6 amd64 [upgradable from: 3.6.0-1ubuntu6.5]
libvirt0/artful-proposed 3.6.0-1ubuntu6.6 amd64 [upgradable from: 3.6.0-1ubuntu6.5]

libvirt-bin/xenial-proposed 1.3.1-1ubuntu10.22 amd64 [upgradable from: 1.3.1-1ubuntu10.21]
libvirt0/xenial-proposed 1.3.1-1ubuntu10.22 amd64 [upgradable from: 1.3.1-1ubuntu10.21]

Xenial:

root@x:~# sudo /usr/lib/libvirt/libvirt-guests.sh stop

Running guests on default URI: b4, b2, b1, b3
Shutting down guests on default URI...
Starting shutdown on guest: b4
Starting shutdown on guest: b2
Waiting for 4 guests to shut down, 120 seconds left
Waiting for 4 guests to shut down, 115 seconds left
Waiting for 4 guests to shut down, 110 seconds left
Waiting for 4 guests to shut down, 105 seconds left
Waiting for 4 guests to shut down, 100 seconds left
Waiting for 4 guests to shut down, 95 seconds left
Waiting for 4 guests to shut down, 90 seconds left
Waiting for 4 guests to shut down, 85 seconds left
Waiting for 4 guests to shut down, 80 seconds left
Shutdown of guest b2 complete.
Starting shutdown on guest: b1
Waiting for 3 guests to shut down, 75 seconds left
Waiting for 3 guests to shut down, 70 seconds left
Waiting for 3 guests to shut down, 65 seconds left
Shutdown of guest b1 complete.
Starting shutdown on guest: b3
Waiting for 2 guests to shut down, 60 seconds left
Waiting for 2 guests to shut down, 55 seconds left
Waiting for 2 guests to shut down, 50 seconds left
Waiting for 2 guests to shut down, 45 seconds left
Waiting for 2 guests to shut down, 40 seconds left
Shutdown of guest b3 complete.
Waiting for 1 guests to shut down, 35 seconds left
Waiting for 1 guests to shut down, 30 seconds left
Waiting for 1 guests to shut down, 25 seconds left
Waiting for 1 guests to shut down, 20 seconds left
Waiting for 1 guests to shut down, 15 seconds left
Waiting for 1 guests to shut down, 10 seconds left
Waiting for 1 guests to shut down, 5 seconds left
Timeout expired while shutting down domains
root@x:~# virsh list
 Id Name State
----------------------------------------------------
 5 b4 running

Artful:
sudo /usr/lib/libvirt/libvirt-guests.sh stop

Running guests on default URI: b4, b2, b3, b1
Shutting down guests on default URI...
Starting shutdown on guest: b4
Starting shutdown on guest: b2
Waiting for 4 guests to shut down, 120 seconds left
Shutdown of guest b2 complete.
Starting shutdown on guest: b3
Shutdown of guest b3 complete.
Starting shutdown on guest: b1
Waiting for 2 guests to shut down, 115 seconds left
Shutdown of guest b1 complete.
Waiting for 1 guests to shut down, 110 seconds left
Waiting for 1 guests to shut down, 105 seconds left
Waiting for 1 guests to shut down, 100 seconds left
Waiting for 1 guests to shut down, 95 seconds left
Waiting for 1 guests to shut down, 90 seconds left
Waiting for 1 guests to shut down, 85 seconds left
Waiting for 1 guests to shut down, 80 seconds left
Waiting for 1 guests to shut down, 75 seconds left
Waiting for 1 guests to shut down, 70 seconds left
Waiting for 1 guests to shut down, 65 seconds left
Waiting for 1 guests to shut down, 60 seconds left
Waiting for 1 guests to shut down, 55 seconds left
Waiting for 1 guests to shut down, 50 seconds left
Waiting for 1 guests to shut down, 45 seconds left
Waiting for 1 guests to shut down, 40 seconds left
Waiting for 1 guests to shut down, 35 seconds left
Waiting for 1 guests to shut down, 30 seconds left
Waiting for 1 guests to shut down, 25 seconds left
Waiting for 1 guests to shut down, 20 seconds left
Waiting for 1 guests to shut down, 15 seconds left
Waiting for 1 guests to shut down, 10 seconds left
Waiting for 1 guests to shut down, 5 seconds left
Timeout expired while shutting down domains

That is just as we want/need it (b4 is the one I hacked to not shut down ever).
Per the tests above settign verification done.