I have a near-stock installation of Fedora 21, and am experiencing the
systemd log flood mentioned previously
(
https://lists.fedoraproject.org/pipermail/fedora-server-list/2014-May/001...).
How do I get systemd to stop putting massive amounts of information into
/var/log/messages for routine cron jobs? I tried setting LogLevel=warn
in /etc/systemd/system.conf and rebooting, but this had no effect.