Re: [PATCH v5 0/3] Turn the difftool into a builtin

Johannes Schindelin [off-list ref] writes:

- replaced the cross-validation with the Perl script by a patch that
  retires the Perl script instead.

Yup.  That makes things a lot simpler.  While we try to be careful
during major rewrite, we usually do not go extra careful to leave
two competing implementations in-tree.

Will replace js/difftool-builtin topic.  Thanks.