222,224c222,226
< diff_ignore_files = [
< # Stat files use a special stat differ, so don't include them
< # here.
---
> # The diff ignore list contains all files that shouldn't be diffed
> # using DiffOutFile. These files typically use special-purpose
> # diff tools (e.g., DiffStatFile).
> diff_ignore_files = (
> # Stat files use a special stat differ
226c228
< ]
---
> )
227a230,235
> # These files should never be included in the list of
> # reference files. This list should include temporary files
> # and other files that we don't care about.
> ref_ignore_files = (
> )
>
254c262
< if fpath not in ClassicTest.diff_ignore_files:
---
> if fpath not in ClassicTest.ref_ignore_files: