Setuptools v54.1.0 introduces a warning that the use of dash-separated
options in 'setup.cfg' will not be supported in a future version [1].
Get ahead of the issue by replacing the dashes with underscores. Without
this, we see 'UserWarning' messages like the following on new enough
versions of setuptools:
UserWarning: Usage of dash-separated 'description-file' will not be
supported in future versions. Please use the underscore name
'description_file' instead
[1] https://github.com/pypa/setuptools/commit/a2e9ae4cb
Change-Id: I7112c11085d646e17fa2beb792a0aeed0d56e66b
The vars, tests and handlers folders are not properly packaged. This
change updates the setup.cfg to include these folders for distribution.
Change-Id: I0d5784c01a681341b50418ef79888ac6d94a5344