Deallocates the record stream and clears the context value used
    with $FIND_HELD, $FIND_HOLDER, or $IDTOASC.

    On Alpha and Integrity server systems, this service accepts 64-
    bit addresses.

    Format

      SYS$FINISH_RDB  contxt

    C Prototype

      int sys$finish_rdb  (unsigned int *contxt);