f.Close() // ignore error; Write error takes precedence
		log.Fatal(err)
	}
	if err := f.Close(); err != nil {
		log.Fatal(err)
	}
}

func ExampleChmod() {
	if err := os.Chmod("some-filename", 0644); err != nil {
		log.Fatal(err)
	}
}

func ExampleChtimes() {
	mtime := time.Date(2006, time.February, 1, 3, 4, 5, 0, time.UTC)