Ref T13321. Previously, the behavior was:
- bin/phd stop --gently: Stop all daemons with PID files that belong to the current instance.
- bin/phd stop: Stop all daemons with PID files that belong to the current instance. Complain if there are more processes.
- bin/phd stop --force: Stop all processes that look like daemons, ignoring instances.
The new behavior is:
- bin/phd stop: Stop all processes that look like daemons and belong to the current instance.
- bin/phd stop --force: Stop all processes that look like daemons, period.