NAME
        ClearCxObjError -- clear the accumulated error value of a commodity
                           object. (V36)
   SYNOPSIS
        ClearCxObjError(co);
                        A0
        VOID ClearCxObjError(CxObj *);
   FUNCTION
        This function clears the accumulated error value of commodity object
        'co'.
        It is unwise to do this to a filter if COERR_BADFILTER is set.
        This will fool commodities into thinking the filter is OK. Set
        another valid filter, or leave the error value alone.
   INPUTS
        co - the object to affect (may be NULL)
   SEE ALSO
        cxobjerror()