More consistent logging: severity missing #969
Description
When I try to request a certificate for a domain, which fails a DNS lookup, I get following output:
2019/09/17 12:25:45 [INFO] [<bad.domain>] AuthURL: https://acme-staging-v02.api.letsencrypt.org/acme/authz-v3/8733359
2019/09/17 12:25:45 [INFO] [<bad.domain>] acme: Could not find solver for: tls-alpn-01
2019/09/17 12:25:45 [INFO] [<bad.domain>] acme: use http-01 solver
2019/09/17 12:25:50 [INFO] [<bad.domain>] acme: Trying to solve HTTP-01
2019/09/17 12:25:50 [INFO] Unable to deactivate the authorization: https://acme-staging-v02.api.letsencrypt.org/acme/authz-v3/8733359
2019/09/17 12:25:50 Could not obtain certificates:
acme: Error -> One or more domains had a problem:
[<bad.domain>] acme: error: 400 :: urn:ietf:params:acme:error:dns :: DNS problem: NXDOMAIN looking up A for <bad.domain>, url:
For easier log parsing the last entry should at least contain the severity in square brackets. E.g. like this:
2019/09/17 12:25:50 [ERROR] Could not obtain certificates:...