Fix invalid manifest in windows test

Author: JackyChiu

context_test.go

@@ -325,7 +325,10 @@ func TestCaseInsentitiveGOPATH(t *testing.T) {
 
 	h.TempDir("src")
 	h.TempDir("src/test1")
-	h.TempFile(filepath.Join("src/test1", ManifestName), `[[constraint]]`)
+	h.TempFile(filepath.Join("src/test1", ManifestName), `
+	[[constraint]]
+		name = github.com/foo/bar
+		branch = master`)
 
 	// Shuffle letter case
 	rs := []rune(strings.ToLower(h.Path(".")))