Re: [PATCH v3] test-lib: GIT_TEST_SANITIZE_LEAK_LOG enabled by default

> As we currently describe in t/README, it can happen that:
> 
>     Some tests run "git" (or "test-tool" etc.) without properly checking
>     the exit code, or git will invoke itself and fail to ferry the
>     abort() exit code to the original caller.
> 
> Therefore, GIT_TEST_SANITIZE_LEAK_LOG=true is needed to be set to
> capture all memory leaks triggered by our tests.
> 
> It seems unnecessary to force users to remember this option, as
> forgetting it could lead to missed memory leaks.
> 
> We could solve the problem by making it "true" by default, but that
> might suggest we think "false" makes sense, which isn't the case.
> 
> Therefore, the best approach is to remove the option entirely while
> maintaining the capability to detect memory leaks in blind spots of our
> tests.
> 
> Signed-off-by: Rubén Justo <rjusto@gmail.com>
> ---
> 
> This iteration mainly reduces the noise introduced in the previous
> iteration.