wal deletion: log wal deletion star at the info level
wal deletion: log wal deletion star at the info level

When setting log level on INFO, it's quite misleading to have only this message:

  Could not delete wal_file: %r, returning

It looks like removal of old wals failed.

I think it would be better to have this (even in INFO level):

  Starting WAL deletion from: %r before: %r, pg_version: %r
  Could not delete wal_file: %r, returning

hnousiainen/pghoard,ohmu/pghoard,saaros/pghoard,hnousiainen/pghoard,ohmu/pghoard