fix: product config cmd tool vendor argument matching

tools/pdcfg/vendor.go

@@ -49,8 +49,7 @@ func DoVendorCommand(args []string) error {
 		return errors.New("command arguments not enough!")
 	}
 
-	op := strings.Replace(args[0], "\n", "", -1)
-
+	op := strings.TrimSpace(args[0])
 	switch op {
 	case "add":
 		if len(args) > 1 {