[docs] [issue36523] Add docstring to io.IOBase.writelines

[Terry J. Reedy]

Terry J. Reedy <tjreedy at udel.edu> added the comment:

Verified.  
>>> import io
>>> io.IOBase.writelines.__doc__
>>>

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nosy: +terry.reedy
title: missing docs for IOBase writelines -> Add docstring to io.IOBase.writelines

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36523>
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