get improved warning


git-svn-id: https://gnunet.org/svn/gnunet@34260 140774ce-b5e7-0310-ab8b-a85725594a96
compare with expected value


git-svn-id: https://gnunet.org/svn/gnunet@34261 140774ce-b5e7-0310-ab8b-a85725594a96