Small correction of cohorte-start-node
Small correction of cohorte-start-node

- Corrected the error handling in the end of the script, as it was using logging without importing nor configuring it
- Corrected a potential NameError in the end of the script (p could be used without being defined)
- Corrected indentation to be a bit more PEP-8 friendly

isandlaTech/cohorte-platforms,isandlaTech/cohorte-platforms,gattazr/cohorte-platforms,gattazr/cohorte-platforms,isandlaTech/cohorte-platforms,gattazr/cohorte-platforms,isandlaTech/cohorte-platforms,gattazr/cohorte-platforms