In T341197, mw-debug-repl was introduced to make it possible for deployers to run shell.php in Kubernetes. This ability helped me to solve some issues, but today, I ran into the need of seeing verbose logging while debugging in k8s. shell.php makes that possible via the --d 2 parameter (and theoretically, --log-all or --log-channels, but those seem to be broken ATM).

Let's expose that ability in mw-debug-repl as well!