Previously all log output produced by Proton-API-Bridge (stdlib log)
and go-proton-api (logrus + resty's logger) bypassed rclone's
logging: it ignored -v / -vv levels and didn't reach --log-file.
Add a small adapter implementing the resty.Logger / bridge Logger
shape that calls fs.Errorf / fs.Logf / fs.Debugf, and pass it via
the new Config.Logger hook. The bridge in turn forwards the same
value to go-proton-api's WithLogger option, so HTTP-layer warnings
and the formerly-hardcoded logrus warnings inside go-proton-api
also surface through rclone's log levels.
Nick Craig-Wood
3b2011c7a0