ArgumentParser.error writes to stderr not to stdout

[sandrotosi]

BPO	12663
Nosy	@sandrotosi
Files	ArgumentParser.error_stderr-default.patch

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2011-08-02.23:45:07.444>
created_at = <Date 2011-07-31.14:33:57.003>
labels = ['docs']
title = 'ArgumentParser.error writes to stderr not to stdout'
updated_at = <Date 2011-08-02.23:45:07.442>
user = 'https://github.com/sandrotosi'

bugs.python.org fields:

activity = <Date 2011-08-02.23:45:07.442>
actor = 'python-dev'
assignee = 'docs@python'
closed = True
closed_date = <Date 2011-08-02.23:45:07.444>
closer = 'python-dev'
components = ['Documentation']
creation = <Date 2011-07-31.14:33:57.003>
creator = 'sandro.tosi'
dependencies = []
files = ['22808']
hgrepos = []
issue_num = 12663
keywords = ['patch']
message_count = 2.0
messages = ['141467', '141585']
nosy_count = 3.0
nosy_names = ['sandro.tosi', 'docs@python', 'python-dev']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue12663'
versions = ['Python 2.7', 'Python 3.2', 'Python 3.3']

[sandrotosi]

Hello, following up http://mail.python.org/pipermail/docs/2011-July/005210.html , here's a patch to fix it. It applies to all the relevant branches.

[python-dev]

New changeset 5ff56995976c by Senthil Kumaran in branch '3.2':
Fix closes bpo-12663 - Correcting the ArgumentParser.error description. Patch by Sandro Tosi.
http://hg.python.org/cpython/rev/5ff56995976c

New changeset a5b3d5051fc7 by Senthil Kumaran in branch 'default':
Fix closes bpo-12663 - Correcting the ArgumentParser.error description. Patch by Sandro Tosi.
http://hg.python.org/cpython/rev/a5b3d5051fc7

New changeset 1e8dc34ece30 by Senthil Kumaran in branch '2.7':
Fix closes bpo-12663 - Correcting the ArgumentParser.error description. Patch by Sandro Tosi.
http://hg.python.org/cpython/rev/1e8dc34ece30