# Sort only lines depending on the first 19 chars
! output sort 19
- $ ./some_simgrid_simulator --log=root.fmt:[%10.6r]%e(%i:%P@%h)%e%m%n
+ $ ./some_simgrid_simulator --log=root.fmt:[%10.6r]%e(%i:%a@%h)%e%m%n
This approach may seem surprising at the first glance but it does its job: