CLN: GH19404 Changing function signature to match logic

[upkarlidder]

• closes to_clipboard excel defaults to "None", but doc string says "True" #19404
• tests added / passed
• passes git diff upstream/master -u -- "*.py" | flake8 --diff

[codecov]

Codecov Report

Merging #19425 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master   #19425   +/-   ##
=======================================
  Coverage   91.63%   91.63%           
=======================================
  Files         150      150           
  Lines       48726    48726           
=======================================
  Hits        44648    44648           
  Misses       4078     4078

Flag	Coverage Δ
#multiple	90% <100%> (ø)	⬆️
#single	41.74% <100%> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/io/clipboards.py	100% <ø> (ø)	⬆️
pandas/core/generic.py	95.91% <100%> (ø)	⬆️

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[jreback]

can you also change in pandas.io.clipboards

[upkarlidder]

@jreback, I thought I already did. There are two changes in this PR. Am I misunderstanding?

pandas.core.generic
pandas.io.clipboards

[jreback]

yep thanks!