[issue38862] IDLE: Include end newlines in whitespace fix.

[Terry J. Reedy]

Change by Terry J. Reedy <tjreedy at udel.edu>:


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pull_requests: +16862
pull_request: https://github.com/python/cpython/pull/17380

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38862>
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