-style fix

git-svn-id: https://gnunet.org/svn/gnunet@31544 140774ce-b5e7-0310-ab8b-a85725594a96
-update PO

git-svn-id: https://gnunet.org/svn/gnunet@31545 140774ce-b5e7-0310-ab8b-a85725594a96
-towards changing use of target distance to be from source (incomplete)

git-svn-id: https://gnunet.org/svn/gnunet@31546 140774ce-b5e7-0310-ab8b-a85725594a96