-fix #3153

git-svn-id: https://gnunet.org/svn/gnunet@31081 140774ce-b5e7-0310-ab8b-a85725594a96
-fix #3157

git-svn-id: https://gnunet.org/svn/gnunet@31082 140774ce-b5e7-0310-ab8b-a85725594a96