This tool is run by a nightly cron job, and takes a `diff' of specified system
 configuration files and emails them to a specified email address. Options
 to diff can be specified. This is useful in friendly environments where there
 are multiple sysadmins working on configuration files/setups and everyone's
 changes are reported. CVS is a better answer, but most of us don't want to
 have the hassle of putting system files in a repository.