[bug#73055] [PATCH] doc: Explain `git format-patch` revision format

[Maxim Cournoyer]

Hi Ekaitz,

Ekaitz Zarraga <ekaitz@elenq.tech> writes:

> * doc/contributing.texi(Sending a Patch Series): Add a note about
> `git format-patch` revision format and link to git documentation.
>
> Change-Id: Ie08f85dc19e3804165fb184664b74e85a804d7c4
> ---
>  doc/contributing.texi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/doc/contributing.texi b/doc/contributing.texi
> index 73f7addbef..d5d63ebdbd 100644
> --- a/doc/contributing.texi
> +++ b/doc/contributing.texi
> @@ -2187,6 +2187,18 @@ Sending a Patch Series
>        --cover-letter --base=auto
>  @end example
>  
> +@quotation Note
> +@code{git format-patch} accepts a wide range of
> +@uref{https://git-scm.com/docs/gitrevisions, revision range} specifiers.
> +For example, if you are working in a branch, you could select all commits
> +in your branch starting at @code{master}.
> +
> +@example
> +$ git format-patch master..@var{MY_BRANCH} -o outgoing \
> +      --cover-letter --base=auto

The --base=auto can be dropped since it's part of our default git
config, which is automatically installed for all of our contributors
(c.f.: etc/git/gitconfig) when they build the Guix source.

Otherwise, LGTM, if others think it has enough value to be added.

--
Thanks,
Maxim