Usage: about check [OPTIONS] LOCATION

  Check .ABOUT file(s) at LOCATION for validity and print error messages.

  LOCATION: Path to an ABOUT file or a directory with ABOUT files.

Options:
  --djc api_url api_key  Validate license_expression from a DejaCode License
                         Library API URL using the API KEY.
  --log FILE             Path to a file to save the error messages if any.
  --verbose              Show all error and warning messages.
  -h, --help             Show this message and exit.
