[docs] [issue15104] Unclear language in __main__ description

[Roundup Robot]

Roundup Robot added the comment:

New changeset 4f23648b7c97 by R David Murray in branch '3.4':
#15104: improve the discussion of __main__.
http://hg.python.org/cpython/rev/4f23648b7c97

New changeset 94ac365bf1b7 by R David Murray in branch 'default':
Merge: #15104: improve the discussion of __main__.
http://hg.python.org/cpython/rev/94ac365bf1b7

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nosy: +python-dev

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15104>
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