def get_format_label(_ns, fmt):
    """
    Return short text description of the format, ready for printing.

    :type fmt: LMIInstance/CIM_LocalFileSystem or LMIInstance/LMI_DataFormat
    :param fmt: Format to describe.

    :rtype: string
    """
    if 'FormatType' in fmt.properties():
        return fmt.FormatTypeDescription
    elif 'FileSystemType' in fmt.properties():
        return fmt.FileSystemType
    else:
        return 'Unknown'
