I would prefer the following output to conform to elog.c output:
2018-06-25 17:32:46.854 CEST [23265] LOG: connection authorized: user=postgres database=postgres application=[unknown]
Hello Gilles,
The different cases were for Stephen's request earlier in this thread. I'm happy to write it either way and agree it would be nice to not have a lot of duplicate code. Do you want me to submit another patch?