[docs] [issue11676] Improve imp.load_module and submodules doc

[Brett Cannon]

Brett Cannon added the comment:

imp.find_module() is now deprecated, so not worrying about adding more details to the docs for the function.

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resolution:  -> out of date
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue11676>
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