Print errors in case of reload failure

[Lusitaniae]

Sometimes we provide bad parameters and systemd reload will fail, with a generic message such as

"Failed to restart app-opstest.service: Unit app-opstest.service is not loaded properly: Invalid argument.\nSee system logs and 'systemctl status app-opstest.service' for details."

Would be nice if this was detected in the role and automatically have the errors displayed

[Lusitaniae]

E.g. https://medium.com/opsops/using-block-for-handlers-in-ansible-a55f45b62a96