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bug#20795: [PATCH][TRY2] Fix behavior of --follow-symlinks on stdin


From: Stanislav Brabec
Subject: bug#20795: [PATCH][TRY2] Fix behavior of --follow-symlinks on stdin
Date: Mon, 20 Jul 2015 15:44:28 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0

On Thu Jun 16, 2015 at 06:45 ANN Jim Meyering wrote:
On Mon, Jul 13, 2015 at 1:59 PM, Stanislav Brabec <address@hidden> wrote:
When reading from stdin, --follow-symlinks causes failure since
v4.2.1-13-g84066bf:
echo abc | sed --follow-symlinks s/a/d/
sed: cannot stat -: No such file or directory

Never call follow_symlink("-") to prevent this problem.
http://bugs.gnu.org/20795

Thank you for the patch.
I've made only a few small changes.
E.g., I added the ChangeLog-style commit log we require,
adjusting wording in a few places, and I removed some
useless quotes in the new test file.

Just in case, I'll wait for you to review and ack before pushing this.

ACK, looks OK.

--
Best Regards / S pozdravem,

Stanislav Brabec
software developer
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