Clarify comment.

config/chroot_local-includes/usr/local/sbin/tails-restricted-network-detector

@@ -44,6 +44,7 @@ sub notify_maybe_blocked {
     # We can't use Desktop::Notify since this script is supposed to be run
     # as root (for access to syslog), started in an env without DESKTOP etc,
     # which also causes issues with opening links in the text body.
+    # All this works fine with tails-notify-user.
     runx('/usr/local/sbin/tails-notify-user', ($summary, $body, '30000'));
 }