I have written a program to assist Devil-Linux administrators find
differences between the default Devil-Linux configuration files and
their machine's own configurations.
It is intended for running after a Devil-Linux system upgrade, so you
can compare your retained configuration files (at /etc-mods/*, as would
be saved by save-config) with the default configuration files (at
/etc-cd/*). It is not a replacement for the file-selection process
offered at first boot after DL upgrade, but it can subsequently help you
identify which of your files differ from the default, and how.
More at http://www.timedicer.co.uk/programs/help/dl-config-compare.sh.
Let me know if you have any problems with it - or suggestions.