* Fix nxos provider transport warning issue
* Add default value of transport arg in provider spec
* Remove default value if transport arg in top level spec
This ensure deprecation warning is seen only in case transport
is given as a top level arg in task
* Refactor nxos modules to reference transport value from provider
spec
* Fix unit test
* Remove transport arg assignment in nxos action plugin
* As assigning transport value is handled in provider spec
top level task arg assignment is no longer required
* Extend tests to have multiple device representations
* Move filepath munging to nxos_module
* Device needs to be kwarg so we can leave it off
* Update other nxos tests
* Update tests that fell through
* test/: PEP8 compliancy
- Make PEP8 compliant
* Python3 chokes on casting int to bytes (#24952)
But if we tell the formatter that the var is a number, it works
