mysysconf ?

I am presently running on a Ubuntu 18.04 instance, and as you know
Debian/Ubuntu have upgraded to version 12. i have not completed the
upgrade yet, so I am in the situation of still having a version 11 server,
attaching from vversion 12 psql.

I was troubleshooting something a few minutes ago, and wound up looking t
the logfiles. I discovered that every time I connect like this I get an
error about the msysconf relation not existing.

This appears to be harmless, but I was wondering what the story on this is?


--
"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
                        -- Benjamin Franklin