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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Backslash-escaped brackets in string literals
Date: Sat, 25 Jan 2020 19:15:35 +0200
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> From: Mattias Engdegård <mattiase@acm.org>
> Date: Sat, 25 Jan 2020 16:32:58 +0100
> Cc: monnier@iro.umontreal.ca, emacs-devel@gnu.org
> 
> However, I think the manual should be amended at this point, and that we needn't require new doc strings to escape brackets in the leftmost column.  Would this patch be acceptable for emacs-27?

I thought I've just shown you that disregarding this issue entirely is
still premature.  I'm okay with maybe making the text less mandatory
and more a recommendation, perhaps even mentioning older Emacs
versions.  But removing it entirely? what's the rush?