bug#73387: 30.0.90; C-x v v in diff-mode doesn't work after C-c C-n

[Eli Zaretskii <eliz@gnu.org>]

> Cc: 73387@debbugs.gnu.org, monnier@iro.umontreal.ca,
>  Juri Linkov <juri@linkov.net>
> From: Sean Whitton <spwhitton@spwhitton.name>
> Date: Mon, 30 Sep 2024 21:10:04 +0800
> 
> +Delete all hunks other than the current hunk.  If the region is active,
> +then delete all hunks other than those the region overlaps.

We usually describe what happens when the region is active, then what
happens "otherwise".

> +*** New command 'diff-delete-other-hunks' bound to C-c RET k.
> +This command deletes hunks other than the current hunk.
> +It is useful to prepare a *vc-diff* buffer for committing a single hunk.

This doesn't mention the active-region case.

> +(defun diff-delete-other-hunks (&optional beg end)
> +  "Delete hunks other than this one.

Which "this hunk"?  Did you mean "current hunk"?

> +When called from Lisp, the region to act upon is specified by optional
> +arguments BEG and END."                       ^^^^^^^^^^^^^^^

Passive tense alert!

> +        ;; If we used `diff-restrict-view' then we may not have the file
> +        ;; header and the commit will not succeed (bug#73387).
                    ^
Comma missing there.

Thanks.