Simpler format for the logs when the application is running on Heroku.
Simpler format for the logs when the application is running on Heroku.

JARR-aggregator/JARR,JARR/JARR,cedricbonhomme/pyAggr3g470r,JARR-aggregator/JARR,JARR-aggregator/JARR,cedricbonhomme/pyAggr3g470r,JARR-aggregator/JARR,cedricbonhomme/pyAggr3g470r,JARR/JARR,cedricbonhomme/pyAggr3g470r,JARR/JARR,cedricbonhomme/pyAggr3g470r,JARR/JARR