"Failed unmounting /var" on every shutdown

[Richard Shaw]

I've been seeing this for a long time but it hasn't seemed to cause any
issues so I've left it alone.

Per this link:

https://unix.stackexchange.com/questions/378678/why-do-i-get-the-error-fa...

It has to do with having a separate /var (common) and journald still trying
to write to the journal while systemd is trying to unmount /var...

Has no one (or between the upstreams) figured out a way of dealing with
this without seeing an error on every shutdown?

Thanks,
Richard