func PrettyPrintCode(h *HTTPError) string {
	codeNumber := h.Code()
	codeText := http.StatusText(h.Code())
	return fmt.Sprintf("%d %s", codeNumber, codeText)
}
func PrettyPrintCode(h *HTTPError) string {
	codeNumber := h.Code()
	codeText := http.StatusText(h.Code())
	return fmt.Sprintf("%d %s", codeNumber, codeText)
}
// PrettyPrintCode renders 'h' as "<error code> <description>", e.g. "200 OK"