Enables or disables specified user privileges. The F$SETPRV
    function returns a list of keywords indicating user privileges;
    this list shows the status of the specified privileges before
    F$SETPRV was executed.

    Your process must be authorized to set the specified privilege.

    For detailed information on privilege restrictions, see the
    description of the $SETPRV system service in the HP OpenVMS
    System Services Reference Manual.

    Format

      F$SETPRV(priv-states)