message: Fail on unknown arguments.
diff: @@ -16,7 +16,7 @@ for ARGUMENT in "$@"; do
  era) ACTIVATE_ERA=${VALUE} ;;
  loglevel) LOG_LEVEL=${VALUE} ;;
  node) NODE_ID=${VALUE} ;;
  - *) ;;
  + *) echo "Unknown argument '${KEY}'. Use 'version', 'era' or 'loglevel'." && exit 1;;
  esac
  done
  