TBR: Update generated file.

Change-Id: If7bfcff5a5642c3b5a686300664fbf9d5443537c
diff --git a/go/src/v.io/x/playground/builder/v23_test.go b/go/src/v.io/x/playground/builder/v23_test.go
index 4ec5654..c79763e 100644
--- a/go/src/v.io/x/playground/builder/v23_test.go
+++ b/go/src/v.io/x/playground/builder/v23_test.go
@@ -4,16 +4,19 @@
 
 // This file was auto-generated via go generate.
 // DO NOT UPDATE MANUALLY
+
 package main_test
 
-import "testing"
-import "os"
+import (
+	"os"
+	"testing"
 
-import "v.io/x/ref/test"
-import "v.io/x/ref/test/v23tests"
+	"v.io/x/ref/test/modules"
+	"v.io/x/ref/test/v23tests"
+)
 
 func TestMain(m *testing.M) {
-	test.Init()
+	modules.DispatchAndExitIfChild()
 	cleanup := v23tests.UseSharedBinDir()
 	r := m.Run()
 	cleanup()