could we make this a bit more ...quiet?

[styygeli]

It works fine but is a little bit chatty, would be nice to choose output to only have warns and criticals. Now it's closer to a debug output and it's filling Syslog quite fast (started from systemctl).

[tomreay]

To be honest I've not used this for a while (switched away from ZFS). Very happy to accept a pull request for a quiet version though, makes a lot of sense for it to be configurable