def METHOD_NAME():
    """
    Store the file with correct copyright years.
    """
    fixed_file, success = re.subn(
        OPENAGE_AUTHORS,
        OPENAGE_AUTHORTEMPLATE.format(crstart=found_start_year,
                                      crend=expected_end_year),
        file_content
    )
    if not success:
        raise ValueError("copyright year fix did not suceeed")
    writefile(filename, fixed_file)
    return f"Copyright for {filename} was fixed."