Re: [PATCH v2 0/7] tests: don't depend on "git init" using the template

> This reduced-in-scope re-roll of [1] changes those tests that
> implicitly relied on the existence of the default "git init" template
> to no longer do so. This makes the intent of the tests more explicit,
> e.g. in the case of the .git/branch directory.
>
> Parts of the v1 were already split up, re-rolled and merged as
> a5bf611cc4f (Merge branch 'ab/hook-tests-updates', 2022-03-30).
>
> Future goals: I then have a local topic on top of this to add the
> "--no-template" option to "git init", and to have the test suite run
> in that mode by default, that's currently one of the blockers for
> making the test run without the bin-wrappers[2], which as noted in [3]
> leaves us with some blind spots in our tests.
>
> But for now this is all relatively straightforward conversion of
> existing tests to make them not rely on "git init" giving them a
> template, which they opt-in to with a new TEST_CREATE_REPO_NO_TEMPLATE
> variable.
>
> Junio: There's a trivial conflict in one of the tests with "next",
> i.e.: