--- simple.el	2019-12-20 01:06:16.849343961 +0100
+++ mysimple.el	2019-12-20 01:03:05.212467674 +0100
@@ -127,6 +127,14 @@
   :safe #'booleanp
   :version "27.1")
 
+(defcustom emacs-lisp-allow-literal-comments nil
+  "If not nil, elisp will allow you to type in top-level comments
+   without using semicolon."
+  :group 'lisp
+  :type 'boolean
+  :safe #'booleanp
+  :version "27.1")
+
 (defvar next-error-highlight-timer nil)
 
 (defvar next-error-overlay-arrow-position nil)