Re: [PATCH] t4200: drop irrelevant code

> While setting up an unresolved merge for `git rerere`, we run `git
> rev-parse` and `git fmt-merge-msg` to create a variable `$fifth` and a
> commit-message file `msg`, which we then never actually use. This has
> been like that since these tests were added in 672d1b789b ("rerere:
> migrate to parse-options API", 2010-08-05). This does exercise `git
> rev-parse` and `git fmt-merge-msg`, but doesn't contribute to testing
> `git rerere`. Drop these lines.
>
> Reported-by: Eric Sunshine <sunshine@sunshineco.com>
> Signed-off-by: Martin Ågren <martin.agren@gmail.com>
> ---
>  This is quite late fallout from Eric's review [1] of some commits that
>  have already gone in.
>
>  [1] https://lore.kernel.org/git/CAPig+cSjHg2-WYqdkZAS0ye1goj_=5RN3mdjt0-4kSBqNm6WLg@mail.gmail.com/