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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: [Emacs-diffs] master 644cdd1: Use grep's --null option (Bug#6843)
Date: Wed, 26 Jul 2017 22:01:16 +0300
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To: Dmitry Gutov <dgutov@yandex.ru>
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In-reply-to: <10f1ac4b-aca5-53e9-5112-b8312471df82@yandex.ru> (message from
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> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Wed, 26 Jul 2017 19:58:32 +0300
> 
> And on the same note, are there any versions of Grep in widespread usage 
> that don't support '--null'? AFAICT this flag was added to GNU Grep 2.4 
> which was released in 1999.

That option is specific to GNU Grep, the other versions of Grep don't
support it.