Define command-line arguments for output of a container (result files).
    @param argument_parser: an argparse parser instance

def add_container_output_args(argument_parser):
    """Define command-line arguments for output of a container (result files).
    @param argument_parser: an argparse parser instance
    """
    argument_parser.add_argument("--output-directory", metavar="DIR", default="output.files",
        help="target directory for result files (default: './output.files')")
    argument_parser.add_argument("--result-files", metavar="PATTERN", action="append", default=[],
        help="pattern for specifying which result files should be copied to the output directory "
            "(default: '.')")