From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?utf-8?Q?Oliver_Ve=C4=8Dern=C3=ADk?= <ov@vecernik.at>
Subject: Re: diff in `src' blocks
Date: Mon, 13 May 2013 10:07:13 +0200
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> Why is the `diff' command alone not exported while the piped `diff' via
> `cat' works?  Is this this a bug?

Figured out myself, sorry for the noise.  It has to do with the exit
status of the `diff', which is 1 if the files are different.  So I use
the pipe through `cat'.