The scripts or crontab entries in these directories should check if all
necessary programs are installed before they try to execute them. Otherwise,
problems will arise when a package was removed but not purged since
configuration files are kept on the system in this situation.
The commandline to find these logs is:
COMMAND='grep -E "(FAIL: Cron file .* has output with package removed|ERROR: Command failed.*./etc/cron\..*/.*.])"'