Re: diff-index --cc no longer permitted, gitk is now broken (slightly)

> Am 30.08.21 um 15:05 schrieb Sergey Organov:
>> As far as I can tell, --cc had no effect on diff-index, it was just
>> silently consumed. If I'm right, this line in gitk never needed --cc.
>> Then either gitk is to be fixed, or we can "fix" diff-index to silently
>> consume --cc/-c again, for backward compatibility.
>
> That latter would be much preferable. Gitk uses the combination -p --cc
> for *all* diff commands when it requests patch output regardless of the
> number of parents. It would be tedious to special-case diff-index to not
> pass --cc.