Turns out that now ansible has a callback.json, but we mean the upper json

Signed-off-by: Patrick Uiterwijk <puiterwijk@redhat.com>

callback_plugins/logdetail2.py

@@ -15,6 +15,8 @@
 # You should have received a copy of the GNU General Public License
 # along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import absolute_import
+
 import os
 import time
 import json