bug#57400: 29.0.50; Support sending patches from VC directly

[Eli Zaretskii]

> Cc: 57400@debbugs.gnu.org
> From: Philip Kaludercic <philipk@posteo.net>
> Date: Wed, 05 Oct 2022 17:34:22 +0000
> 
> Here is an updated version of the patch:

Thanks.

> +@findex vc-prepare-patch
> +When collaborating on projects it is common to send patches via Email,

I think "email" should not be capitalized.

> ++++
> +*** New 'vc-prepare-patch' command.

"New command 'vc-prepare-patch'."

> +** Subr-x
> +
> +---
> +*** New macro 'with-funcall-substitutions'.
> +The macro can be used to generically substitute function symbols in
> +expressions.

This looks unrelated?