Re: [PATCH] advice: recommend GIT_ADVICE=0 for tools

> The GIT_ADVICE environment variable was added implicitly in b79deeb5544
> (advice: add --no-advice global option, 2024-05-03) but was not
> documented. Add documentation to show that it is an option for tools
> that want to disable these messages. Make note that while the
> --no-advice option exists, older Git versions will fail to parse that
> option. The environment variable presents a way to change the behavior
> of Git versions that understand it without disrupting older versions.
>
> Signed-off-by: Derrick Stolee <stolee@gmail.com>
> ---
> diff --git a/Documentation/config/advice.txt b/Documentation/config/advice.txt
> @@ -1,8 +1,12 @@
>  advice.*::
>         These variables control various optional help messages designed to
> -       aid new users.  When left unconfigured, Git will give the message
> -       alongside instructions on how to squelch it.  You can tell Git
> -       that you do not need the help message by setting these to `false`:
> +       aid new users. These are output to `stderr` by default as they are
> +       intended to help human readers. Tools that execute Git as a subprocess
> +       can disable these messages by setting `GIT_ACVICE=0` in the environment.