return 0
	}
	if req.ContentLength != 0 {
		return req.ContentLength
	}
	return -1
}

// DumpRequestOut is like [DumpRequest] but for outgoing client requests. It
// includes any headers that the standard [http.Transport] adds, such as
// User-Agent.
func DumpRequestOut(req *http.Request, body bool) ([]byte, error) {
	save := req.Body
	dummyBody := false
	if !body {
		contentLength := outgoingLength(req)

	req, err := http.NewRequest("PUT", "http://www.example.org", strings.NewReader(body))
	if err != nil {
		log.Fatal(err)
	}

	dump, err := httputil.DumpRequestOut(req, true)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Printf("%q", dump)

	// Output: