A logging daemon on a RHEL 9 server has stopped recording new entries, and several applications report intermittent errors when writing to /var/log. The root filesystem shows plenty of free space when you run 'df -h /'. However, 'df -h /var/log' reveals that /var/log is a separate mount at 100% usage. Before adding storage, you want to reclaim space quickly and safely. Which command gives you the most targeted information to identify what is consuming the space on the /var/log filesystem?