I'm wanting to use fdupes to weed out duplicate files (opposed to
different files with duplicate names) saved from pan. pan mangles
duplicate names ${first}.${last} into ${first}_(number).${last}. I would
surmise that currently (shown in behaviour) fdupes builds its file list
in raw directory order. For additional options, I would like to be able
to sort each duplicate list by lexical order, or by lexical order
without leading directory. If --omitfirst is used, the sorting should
happen BEFORE the first file is omitted from each set.