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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.help
Subject: Re: Defun Self Documentation
Date: Fri, 06 Nov 2020 07:27:42 +0200
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In-Reply-To: <87pn4rwm8e.fsf@zoho.eu> (message from Emanuel Berg via Users
 list for the GNU Emacs text editor on Thu, 05 Nov 2020 22:02:41 +0100)
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> Date: Thu, 05 Nov 2020 22:02:41 +0100
> From: Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
> 
> Eli Zaretskii wrote:
> 
> > (require 'paren)          <<<<<<<<<<<<<<< not needed
> 
> Without it:
> 
> ~/.emacs:35:7: Warning: assignment to free variable
> ‘show-paren-delay’

Are you usin lexical-binding in your init files? don't.

> > (setq show-paren-delay 0) <<<<<<<<< questionable
> 
> ?

You are suggesting someone else to use your personal preferences
without explaining your reasons for not liking the default value.
That is questionable practice at best.