Re: [PATCH 2/3] diff: refactor the word-diff setup from builtin_diff_cmd

Thomas Rast [off-list ref] writes:

Quite a chunk of builtin_diff_cmd deals with word-diff setup, defaults
and such.  This makes the function a bit hard to read, but is also
asymmetric because the corresponding teardown lives in free_diff_words_data
already.

Yay!  "A bit hard to read" is a gross understatement ;-)

Whether the series fixes a bug of not, this alone makes the patch
worthwhile to look.

Thanks.