Added some more cleanup in tests

Author: cmaglie

repos_test.go

@@ -45,6 +45,8 @@ func TestParseAPTConfigFolder(t *testing.T) {
 func TestAddAndRemoveRepository(t *testing.T) {
 	// test cleanup
 	defer os.Remove("testdata/apt2/sources.list.d/managed.list")
+	defer os.Remove("testdata/apt2/sources.list.d/managed.list.save")
+	defer os.Remove("testdata/apt2/sources.list.d/managed.list.new")
 
 	repo1 := &Repository{
 		Enabled:      true,