Vladimír Čunát authored Aug 09, 2021 and Tomas Krizek committed Aug 10, 2021

- use notice log level instead of error
  The failure is often a normal condition but we probably want it
  logged by default (after explicitly loading the module).
- don't repeat the "dnssec" word twice in a row (+update docs)
- docs bogus_log.frequent(): we format tables differently (old change)