fs: unexport Local and expose via NewLocal

internal/restorer/restorer.go

@@ -489,7 +489,7 @@ func (res *Restorer) removeUnexpectedFiles(ctx context.Context, target, location
 		panic("internal error")
 	}
 
-	entries, err := fs.Readdirnames(fs.Local{}, target, fs.O_NOFOLLOW)
+	entries, err := fs.Readdirnames(fs.NewLocal(), target, fs.O_NOFOLLOW)
 	if errors.Is(err, os.ErrNotExist) {
 		return nil
 	} else if err != nil {

internal/restorer/restorer_test.go

@@ -1537,7 +1537,7 @@ func TestRestorerLongPath(t *testing.T) {
 
 	repo := repository.TestRepository(t)
 
-	local := &fs.Local{}
+	local := fs.NewLocal()
 	sc := archiver.NewScanner(local)
 	rtest.OK(t, sc.Scan(context.TODO(), []string{tmp}))
 	arch := archiver.New(repo, local, archiver.Options{})