GNU bug report logs - #46550
bug in diff -r?

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Stan Schymanski <schymans <at> gmail.com>, 46550 <at> debbugs.gnu.org
Subject: bug#46550: [bug-diffutils] bug#46550: bug in diff -r?
Date: Tue, 16 Feb 2021 09:22:22 -0800

On 2/15/21 1:56 PM, Stan Schymanski wrote:
> Is this a bug
> or am I misunderstanding diff -r?

Perhaps a bit of both. The algorithm you want (which is to pretend that 
directories missing in A are empty in B, and vice versa) is not the 
algorithm that 'diff -r A B' uses.

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