Mask bearer token in logs when logLevel >= 9

Kubernetes-commit: f0f52255412cbc6834bd225a59608ebb4a0d399b

transport/round_trippers.go

@@ -340,6 +340,7 @@ func (r *requestInfo) toCurl() string {
 	headers := ""
 	for key, values := range r.RequestHeaders {
 		for _, value := range values {
+			value = maskValue(key, value)
 			headers += fmt.Sprintf(` -H %q`, fmt.Sprintf("%s: %s", key, value))
 		}
 	}