-simplify logging using macro

git-svn-id: https://gnunet.org/svn/gnunet@33762 140774ce-b5e7-0310-ab8b-a85725594a96
-misc stuff

git-svn-id: https://gnunet.org/svn/gnunet@33763 140774ce-b5e7-0310-ab8b-a85725594a96