[systemd-devel] How to quiet cron sessions logging with systemd-212?

[Leho Kraav]

After upgrading systemd 208 -> 212, every single cron job creates this 
flood in systemd journal:

juuni 09 09:20:01 xps14 crond[15112]: pam_unix(crond:session): session 
opened for user root by (uid=0)
juuni 09 09:20:01 xps14 systemd[15113]: pam_unix(systemd-user:session): 
session opened for user root by (uid=0)
juuni 09 09:20:01 xps14 systemd[1]: Starting user-0.slice.
juuni 09 09:20:01 xps14 systemd[1]: Created slice user-0.slice.
juuni 09 09:20:01 xps14 systemd[1]: Starting User Manager for UID 0...
juuni 09 09:20:01 xps14 systemd[1]: Starting Session 107 of user root.
juuni 09 09:20:01 xps14 systemd[1]: Started Session 107 of user root.
juuni 09 09:20:02 xps14 systemd[15113]: Starting Paths.
juuni 09 09:20:02 xps14 systemd[15113]: Reached target Paths.
juuni 09 09:20:02 xps14 systemd[15113]: Starting Timers.
juuni 09 09:20:02 xps14 systemd[15113]: Reached target Timers.
juuni 09 09:20:02 xps14 systemd[15113]: Starting Sockets.
juuni 09 09:20:02 xps14 systemd[15113]: Reached target Sockets.
juuni 09 09:20:02 xps14 systemd[15113]: Starting Basic System.
juuni 09 09:20:02 xps14 systemd[15113]: Reached target Basic System.
juuni 09 09:20:02 xps14 systemd[15113]: Starting Default.
juuni 09 09:20:02 xps14 systemd[15113]: Reached target Default.
juuni 09 09:20:02 xps14 systemd[15113]: Startup finished in 31ms.
juuni 09 09:20:02 xps14 systemd[1]: Started User Manager for UID 0.
juuni 09 09:20:02 xps14 CROND[15116]: (root) CMD (test -x 
/usr/sbin/run-crons && /usr/sbin/run-crons )
juuni 09 09:20:02 xps14 CROND[15112]: pam_unix(crond:session): session 
closed for user root
juuni 09 09:20:02 xps14 systemd[1]: Stopping User Manager for UID 0...
juuni 09 09:20:02 xps14 systemd[15113]: Stopping Default.
juuni 09 09:20:02 xps14 systemd[15113]: Stopped target Default.
juuni 09 09:20:02 xps14 systemd[15113]: Stopping Basic System.
juuni 09 09:20:02 xps14 systemd[15113]: Stopped target Basic System.
juuni 09 09:20:02 xps14 systemd[15113]: Stopping Paths.
juuni 09 09:20:02 xps14 systemd[15113]: Stopped target Paths.
juuni 09 09:20:02 xps14 systemd[15113]: Stopping Timers.
juuni 09 09:20:02 xps14 systemd[15113]: Stopped target Timers.
juuni 09 09:20:02 xps14 systemd[15113]: Stopping Sockets.
juuni 09 09:20:02 xps14 systemd[15113]: Stopped target Sockets.
juuni 09 09:20:02 xps14 systemd[15113]: Starting Shutdown.
juuni 09 09:20:02 xps14 systemd[15113]: Reached target Shutdown.
juuni 09 09:20:02 xps14 systemd[15113]: Starting Exit the Session...
juuni 09 09:20:02 xps14 systemd[15113]: Received SIGRTMIN+24 from PID 
15128 (kill).
juuni 09 09:20:02 xps14 systemd[15114]: pam_unix(systemd-user:session): 
session closed for user root
juuni 09 09:20:02 xps14 systemd[1]: Stopped User Manager for UID 0.
juuni 09 09:20:02 xps14 systemd[1]: Stopping user-0.slice.
juuni 09 09:20:02 xps14 systemd[1]: Removed slice user-0.slice.

Can I quiet this down somehow?