Re: [PATCH v10 8/8] builtin/history: implement "reword" subcommand

>
> Implement a new "reword" subcommand for git-history(1). This subcommand
> is similar to the user performing an interactive rebase with a single
> commit changed to use the "reword" instruction.
>
> The "reword" subcommand is built on top of the replay subsystem
> instead of the sequencer. This leads to some major differences compared
> to git-rebase(1):
>
>   - We do not check out the commit that is to be reworded and instead
>     perform the operation in-memory. This has the obvious benefit of
>     being significantly faster compared to git-rebase(1), but even more
>     importantly it allows the user to rewrite history even if there are
>     local changes in the working tree or in the index.
>
>   - We do not execute any hooks, even though we leave some room for
>     changing this in the future.
>
>   - By default, all local branches that contain the commit will be
>     rewritten. This especially helps with workflows that use stacked
>     branches.
>
> Helped-by: Elijah Newren <newren@gmail.com>
> Signed-off-by: Patrick Steinhardt <ps@pks.im>