the elog message references "/etc/fcrontab" multiple times but it is "/etc/fcron/fcrontab" I don't know which is correct, so please fix :)
Stumbled upon this issue as well while upgrading fcron-3.0.4 to 3.0.5-r2. The message has to be changed to refer to /etc/fcron/crontab instead of /etc/crontab. Note that it is crontab instead of fcrontab, as the latter has a different purpose (it is for check_system_crontabs as explained in the elog message).
This should be okay in 3.0.6-r1.