On Wed, Dec 02, 2020 at 06:08:24PM +0300, Jean Louis wrote:

[...]

> I was forgetting that (message) is formatting itself and wanted to
> forget about it when debugging.
> 
> Often I wish to show value of a function in buffer, so I used
> `message-any', it appeared easier, but need not be. If I forget "%s"
> then it would not work. 

Strange. I don't have `message-any'.

When I want to have in the current buffer, I do

  (insert (format ...))

Cheers
 - t