$ lookout-sdk review --from HEAD^ --log-format=json 2> log.err
{"analyzer-name":"","file":"cmd/lookout-sdk/push.go","text":"The file has increased in 2 lines."}

$ lookout-sdk review --log-level=error
{"analyzer-name":"test-analyzer","file":"cmd/lookout-sdk/event.go","text":"The file has increased in 8 lines."}
{"analyzer-name":"test-analyzer","file":"cmd/lookout-sdk/event.go","line":29,"text":"This line exceeded 120 chars."}