RefreshHistoryOrdersEarningPrice中不正确返回retVal给ParallelTask的问题修复

business/jxcallback/orderman/order.go

@@ -718,13 +718,13 @@ func (c *OrderManager) RefreshHistoryOrdersEarningPrice(ctx *jxcontext.Context,
 			}()
 			for _, value := range order.Skus {
 				if _, err = dao.UpdateEntity(db, value, "EarningPrice", "StoreSubID"); err != nil {
-					return "", err
+					return nil, err
 				}
 			}
 			jxutils.RefreshOrderSkuRelated(order)
 			num, err := dao.UpdateEntity(db, order, "EarningPrice")
 			if err != nil {
-				return "", err
+				return nil, err
 			}
 			dao.Commit(db)
 			retVal = num