ref: Rename cmdline.NewEnv to cmdline.EnvFromOS

This is more descriptive, and matches test/modules.EnvFromOS.

Change-Id: Ibf5ff72e1d09bb3b9f41030b2e1b60fa6a030004
MultiPart: 3/3
diff --git a/cmd/vdl/vdl_test.go b/cmd/vdl/vdl_test.go
index 0607fab..da17bb9 100644
--- a/cmd/vdl/vdl_test.go
+++ b/cmd/vdl/vdl_test.go
@@ -33,7 +33,7 @@
 	defer os.RemoveAll(outDir)
 	// TODO(toddw): test the generated java and javascript files too.
 	outOpt := fmt.Sprintf("--go-out-dir=%s", outDir)
-	env := cmdline.NewEnv()
+	env := cmdline.EnvFromOS()
 	if err := cmdline.ParseAndRun(cmdVDL, env, []string{"generate", "--lang=go", outOpt, testDir}); err != nil {
 		t.Fatalf("Execute() failed: %v", err)
 	}