``` setconf Log="[rend,heartbeat]debug notice stdout" ``` ``` Jun 02 06:28:04.000 [warn] No such logging domain as heartbeat Jun 02 06:28:04.000 [warn] Couldn't parse log levels in Log option 'Log [rend,heartbeat]debug notice stdout' Jun 02 06:28:04.000 [warn] Controller gave us config lines that didn't validate: Failed to validate Log options. See logs for details. ```