Subject: [PATCH] Automatic elisp dialect insertion

From: Mattias Engdegård <[email-masked]>
Date: Mon, 23 Oct 2023 19:46:14 +0200

This patch inserts the lexical cookie in new Elisp files automatically.
It helps users by making it less likely that they forget to add it, and eliminates some drudgery.
Their code will be more future-safe, and more robust and performant here and now.