message: Test --helpfull flag.  (--help wasn't enough)
diff: @@ -40,9 +40,9 @@ status="$?"
  }
  ################################################################################
  -echo "=== Test '--help'."
  +echo "=== Test '--helpfull'."
  -"$extractor" --help > "$MY_OUTPUT_FILE" 2>&1
  +"$extractor" --helpfull > "$MY_OUTPUT_FILE" 2>&1
  status="$?"
  [[ $status == 1 ]] || {
  