[Bug stdio/20677] perror() changes orientation of stream when it is redirected

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=20677

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |fweimer at redhat dot com

--- Comment #2 from Florian Weimer <fweimer at redhat dot com> ---
stderr does not have to be backed by a POSIX file descriptor because glibc
explicitly permits assignments to stderr.  So any fileno-based hack, with our
without stderr, is not quite correct.

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