This is defines the description part of the output generated by the Usage function. Mulitple catalogs are specified by mulitple -catalog options. Mulitple parameter entities are specified by mulitple -ignore options. Mulitple parameter entities are specified by mulitple -include options. OptValues Hash containing values of command-line options.
Keys are the option name.
The values' types are dependent on the option specification. Descriptions are brief descriptions of the associated option. The descriptions are used by the Usage function. Any specifications are added to the current option specifications and will be used by the GetOptions function.