David B. Kinder 791b091bbe doc: more prep for upgrading doc build tools ...

Preparing for upgrading to newer versions of doc building tools
including sphing, doxygen, breathe, docutils, etc.  This PR's changes
still work find with the older tool versions, but should eliminate
issues found while moving to newer tool versions (later).

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>

2020-11-01 10:12:17 -08:00

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