[netboot][tftp] Add TODOs to add testing for these packages.

Bug: 10320
Change-Id: Ife6fc2b691580643093450ccf674dfa73c9ec106
diff --git a/netboot/netboot.go b/netboot/netboot.go
index b98a3cc..49ac636 100644
--- a/netboot/netboot.go
+++ b/netboot/netboot.go
@@ -3,6 +3,8 @@
 // found in the LICENSE file.
 
 // This package implements the Zircon netboot protocol.
+//
+// TODO(fxb/35957): Add testing for this package.
 package netboot
 
 import (
diff --git a/tftp/tftp.go b/tftp/tftp.go
index 980c5d8..246808b 100644
--- a/tftp/tftp.go
+++ b/tftp/tftp.go
@@ -1,6 +1,8 @@
 // Copyright 2017 The Fuchsia Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
+
+// TODO(fxb/35958): Add testing for this package.
 package tftp
 
 import (