bug#40573: 27.0.90; flymake-mode broken in scratch buffer

[Juri Linkov]

> I've put "the code" in a branch in our repo, called
> 'scratch/add-lisp-data'.

Thanks.  I noticed that you don't use semicolon between pairs:

  ;;; -*- coding: utf-8 mode: lisp-data -*-

I'm surprised that it still works, but wouldn't it be better to
follow the manual in (info "(emacs) Specifying File Variables")
and separate pairs with semicolon:

  ;;; -*- coding: utf-8; mode: lisp-data -*-