- more info in log about payload

git-svn-id: https://gnunet.org/svn/gnunet@33047 140774ce-b5e7-0310-ab8b-a85725594a96
- log

git-svn-id: https://gnunet.org/svn/gnunet@33048 140774ce-b5e7-0310-ab8b-a85725594a96
- comply with doc

git-svn-id: https://gnunet.org/svn/gnunet@33049 140774ce-b5e7-0310-ab8b-a85725594a96