hs_container::set_changed

Source: master/hs_container__set_changed.pro

 hs_container::set_changed
        Set the changed flag of tlo.

 Usage:
        hsref -> set_changed

 Keyword:
        clear   If set, then clear the changed flag.

 History:
        Original: 19/6/01; SJT
        Add clear flag 21/6/01; SJT