Improve logging messages/levels
Improve logging messages/levels

Change-Id: Ic7022031013893f4365e2e5ed12c88a4b7afa4a6
Reviewed-on: https://gerrit.spotify.net/gerrit/73577
Reviewed-by: Paweł Rozlach <bb6340f668e0a0e9a9592e4f835bf23c6026f908@spotify.com>

spotify/certcheck