/*
 *  call-seq:
 *     sort.to_s -> string
 *
 *  Returns a human readable string representing the sort object.
 */
static VALUE
frt_sort_to_s(VALUE self)
{
    GET_SORT();
    char *str = sort_to_s(sort);
    VALUE rstr = rb_str_new2(str);
    free(str);
    return rstr;
}