Eli Zaretskii wrote:

If we are going to keep sub-arity, I'd prefer if this new function
called it, instead of copying its code inline.

Done.

Also, I believe you said you'd write the documentation? Could you
please add that? Then the patch will be ready to go in, I think.

In the attached patch I modified `doc/lispref/functions.texi': text about

`subr-arity' is moved to a new section above about `func-arity' and

adapted as needed. `subr-arity' is still in the documentation, but I

replaced its description with an advice to use `func-arity' instead. Is

that enough?

Do you still need changelog entries? Long time since I committed

anything to Emacs, maybe you finally got rid of them (I hope)?

Paul