Update test 659-print_publish_statistics
Update test 659-print_publish_statistics

Modify the test to be up to date with the new
publish statistics format.

related commit: e5a864618f304c2c54656c0982962da4b4b93acf

DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs