>> It seems pretty good.  When installing it, it should not use
>> `advice-add'.  Rather, `message' should call a list of functions.
>
> Unfortunately, past discussions didn't lead to any significant
> progress wrt this.

My intention was to fix the bug which manifests itself in
grammatically incorrect sentences displayed by ‘message’ like

  Deleted 1 matching lines
  1 matches found
  ...

After searching for available packages I found only this page
https://savannah.nongnu.org/projects/emacs-i18n
that shows no progress for many years.

So here is a patch that fixes the bug by translating currently
invalid messages into grammatically correct English.  It also
opens the gate towards translation of messages in many languages.
Currently this feature is activated by (require 'i18n-message):