wltest: fix trace-cmd parameters
Created by: qperret
The correct section name to configure trace-cmd should have a "-" instead of a "_" so let's fix that.
GitLab Maintenance scheduled for Thursday, 18th December 2025, from 7:00 AM to 10:00 AM BST. GitLab will be in read-only mode and experience short periods of complete downtime (up to 20 minutes) during this window.
Created by: qperret
The correct section name to configure trace-cmd should have a "-" instead of a "_" so let's fix that.