I have now had some more time to think about this issue. I don't believe
any changes are warranted, because "Errors should never pass silently.
Unless explicitly silenced." and since rename errors are usually due to
application- or environment-specific conditions, you need to handle
these in application code.

If logging continues to use the existing log file because renaming
fails, then it does not behave according to expectations - e.g. maximum
sizes on log files will not be honoured.

Likewise, logging does not attempt to use makedirs() to ensure that the
parent directory path is created first - a typo in the path would lead
to an unexpected location for the log file.

While Python logging borrowed a lot from log4j, it is far from a
straight port; the Zen of Python is different from the Zen of Java.