//		}
//		return buf.Bytes()
//	}
//
// The 4 GB of zeros compresses to 4 MB, which compresses to 20 kB,
// which compresses to 1252 bytes (in the hex dump below).
//
// It's here in hex for the same reason as rZipBytes above: to avoid
// problems with on-disk virus scanners or other zip processors.
func biggestZipBytes() []byte {
	s := `
0000000 50 4b 03 04 14 00 08 00 08 00 00 00 00 00 00 00

	attempt := 0
	for {
		cmd := idevCmd(exec.Command(
			"ideviceinstaller",
			"-i", appdir,
		))
		if out, err := cmd.CombinedOutput(); err != nil {
			// Sometimes, installing the app fails for some reason.
			// Give the device a few seconds and try again.
			if attempt < 5 {
				time.Sleep(5 * time.Second)
				attempt++
				continue
			}
			os.Stderr.Write(out)