[issue6121] help('modules ') causes IndexError.

[R. David Murray]

New submission from R. David Murray <rdmurray at bitdance.com>:

Here is a trivial patch for pydoc with a minimal test.

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components: +Library (Lib)
keywords: +easy, patch
nosy: +r.david.murray
priority:  -> low
stage:  -> patch review
versions: +Python 2.6, Python 2.7, Python 3.0, Python 3.1, Python 3.2
Added file: http://bugs.python.org/file14085/issue6121.patch

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