Comment 8 for bug 46493

The files in /etc/cron.d (which is what the report is about) are not
scripts but crontabs.

My test was this crontab line:

* * * * * root date >> /tmp/date.log

And for sure ran after chmod 0000

Yay for vixie cron for making a difference between crontabs and scripts
when it comes to permission handling :/