[issue20635] Fix the grid geometry manager and add tests for geometry managers

[Roundup Robot]

Roundup Robot added the comment:

New changeset e8c184d8407d by Serhiy Storchaka in branch '3.4':
Issue #20635: Added tests for Tk geometry managers.
http://hg.python.org/cpython/rev/e8c184d8407d

New changeset e8acef4f8567 by Serhiy Storchaka in branch 'default':
Issue #20635: Added tests for Tk geometry managers.
http://hg.python.org/cpython/rev/e8acef4f8567

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nosy: +python-dev

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<http://bugs.python.org/issue20635>
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