[issue25399] Optimize bytearray % args

[Roundup Robot]

Roundup Robot added the comment:

New changeset 03646293f1b3 by Victor Stinner in branch 'default':
Fix long_format_binary()
https://hg.python.org/cpython/rev/03646293f1b3

New changeset 6fe0050a2f52 by Victor Stinner in branch 'default':
Add use_bytearray attribute to _PyBytesWriter
https://hg.python.org/cpython/rev/6fe0050a2f52

New changeset f369b79c0153 by Victor Stinner in branch 'default':
Optimize bytearray % args
https://hg.python.org/cpython/rev/f369b79c0153

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nosy: +python-dev

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