[issue21774] Fix a NameError in xml.dom.minidom

[Roundup Robot]

Roundup Robot added the comment:

New changeset ca33faa214ab by Raymond Hettinger in branch '3.4':
Issue #21774: Fix incorrect variable in xml.dom.minidom
http://hg.python.org/cpython/rev/ca33faa214ab

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nosy: +python-dev

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<http://bugs.python.org/issue21774>
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