支持ds重置（当前限geo）

cmd/saastool/exp_get.go

@@ -94,7 +94,7 @@ func RunExpGet(args ...string) error {
 		groupBySlice = strings.Split(*groupBy, ",")
 		for _, group := range groupBySlice {
 			if !validGroupBy[group] {
-				return fmt.Errorf("Group by error. group:", group)
+				return fmt.Errorf("Group by error. group: %v", group)
 			}
 		}
 	}