[issue7515] Lib/test/regrtest.py -ulib2to3 yield "Invalid -u option"

[flox]

New submission from flox <laxyf at yahoo.fr>:

~ $ ./python Lib/test/regrtest.py --help
(...)
    lib2to3 -   Run the tests for 2to3 (They take a while.)
(...)

~ $ ./python Lib/test/regrtest.py -ulib2to3
Invalid -u/--use option: lib2to3
Use --help for usage

----------
components: Tests
messages: 96448
nosy: flox
severity: normal
status: open
title: Lib/test/regrtest.py -ulib2to3 yield "Invalid -u option"
versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue7515>
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