On Tue, Dec 01, 2020 at 10:44:09PM +0100, Michael Heerdegen wrote:
> <tomas@tuxteam.de> writes:
> 
> >   (message "my heading: %s" (prin1-to-string any))
> 
> Or equivalent
> 
>     (message "my heading: %S" any)
> 
> , no?

Indeed. Recommended reading "4.7 Formatting Strings" in the Emacs Lisp
manual (in the Intertubes here [1]).

Cheers

[1] https://www.gnu.org/software/emacs/manual/html_node/elisp/Formatting-Strings.html

 - t