[issue35764] IDLE: revise calltip doc

[Terry J. Reedy]

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


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keywords: +patch
pull_requests: +21402
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/22363

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35764>
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