Fix copy2 docstring.

[codecov[bot]]

Codecov Report

Merging #180 (247c702) into master (3eadf5f) will decrease coverage by 0.00%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #180      +/-   ##
==========================================
- Coverage   99.09%   99.09%   -0.01%     
==========================================
  Files          24       23       -1     
  Lines        5079     5063      -16     
==========================================
- Hits         5033     5017      -16     
  Misses         46       46              

Flag	Coverage Δ
macOS	68.22% <ø> (ø)
py3.10	99.07% <ø> (-0.01%)	:arrow_down:
py3.6	99.07% <ø> (-0.01%)	:arrow_down:
py3.7	99.07% <ø> (-0.01%)	:arrow_down:
py3.8	99.07% <ø> (-0.01%)	:arrow_down:
py3.9	99.09% <ø> (-0.01%)	:arrow_down:
ubuntu	96.77% <ø> (ø)
windows	99.00% <ø> (-0.01%)	:arrow_down:
x64	99.09% <ø> (-0.01%)	:arrow_down:
x86	99.00% <ø> (-0.01%)	:arrow_down:

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Impacted Files	Coverage Δ
smbclient/shutil.py	95.09% <ø> (ø)
smbclient/__init__.py	100.00% <0.00%> (ø)
smbprotocol/__init__.py

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[jborean93]

Thanks for the fix.