- * journalctl gained a new switch, --flush, that flushes
- logs from /run/log/journal to /var/log/journal if
- persistent storage is enabled.
+ * journalctl gained a new switch, --flush, that synchronously
+ flushes logs from /run/log/journal to /var/log/journal if
+ persistent storage is enabled. systemd-journal-flush.service
+ now waits until the operation is complete.