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bug#44409: Example in manual no longer works

From: 積丹尼 Dan Jacobson
Subject: bug#44409: Example in manual no longer works
Date: Tue, 03 Nov 2020 15:47:37 +0800

$ grep --color -nH --null -e a /etc/motd
/etc/motd:2:The programs included with the Debian GNU/Linux system are free 
/etc/motd:3:the exact distribution terms for each program are described in 
$ grep --color -nH --null -e a /etc/motd | grep x
Binary file (standard input) matches

>>>>> "EZ" == Eli Zaretskii <eliz@gnu.org> writes:
EZ> And what is the significance of --null for this purpose?

     grep -nH -e

is not the current emacs prompt. It is an older emacs prompt.

The current emacs prompt is

     grep --color -nH --null -e

You can verify this via
$ emacs -f grep

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