bug#70882: 30.0.50; [PATCH] Print the real direction in the prompt for '(previous|next)-matching-history-element'

[Eli Zaretskii]

> Date: Sat, 11 May 2024 11:53:18 -0700
> From: Jim Porter <jporterbugs@gmail.com>
> 
> To see the problem, start from "emacs -Q":
> 
>    M-x
>    M-r      ;; Emacs prompts "Previous element matching regexp:"
>    C-g
> 
>    M-- M-r  ;; Emacs prompts "Previous element matching regexp:" (?!)
> 
> In the last line, the prefix argument is negative, so the search will 
> actually be for the *next* matching element. The attached patch fixes 
> this so that the prompt message accounts for the prefix arg.
> 
> While I was here, I also made 'next-matching-history-element' use 
> 'format-prompt' like its 'previous-...' sibling.

Thanks, LGTM.