syslog error msgs when running 'snap list' on disabled daemon snap

[Tim Van Steenburgh]

Nothing is broken, this just makes a small mess in the snapd syslog. Maybe it's avoidable?

tvansteenburgh@slipgate:~$ snap version
snap 2.33.1
snapd 2.33.1
series 16
ubuntu 16.04
kernel 4.15.0-24-generic

tvansteenburgh@slipgate:~$ snap list multipass
Name Version Rev Tracking Developer Notes
multipass 2018.6.1 334 beta canonical classic

tvansteenburgh@slipgate:~$ sudo snap disable multipass
multipass disabled

tvansteenburgh@slipgate:~$ journalctl -u snapd.service -n 2
-- Logs begin at Thu 2018-07-26 01:43:10 EDT, end at Thu 2018-07-26 09:25:32 EDT. --
Jul 26 09:23:27 slipgate snapd[2025]: 2018/07/26 09:23:27.745314 snap.go:285: cannot get status of service "libvirt-bin": cannot get service status: empty field "Type" in ‘systemctl show’ output
Jul 26 09:23:27 slipgate snapd[2025]: 2018/07/26 09:23:27.748317 snap.go:285: cannot get status of service "multipassd": cannot get service status: empty field "Type" in ‘systemctl show’ output

Similar thing also happens with microk8s. You get the "error" message for every daemon in the snap.

[Tim Van Steenburgh (tvansteenburgh)]

Originally reported here: https://github.com/ubuntu/microk8s/issues/74