- While this appears to be private, it's also documented as available
to set here: https://docs.python.org/3/howto/logging.html#optimization
- Did *not* update `logging.logThreads` et al to match the
documentation as it may be more appropriate to update the
documentation to set to `False` rather than to `0` based on how these
are used
Type further narrowed based on known type of a parameter to
`os.normcase`
