Mark McLoughlin 904af119d2 Stop using cfg's internal implementation details
The fact that a cfg opt register using register_opt() is available via
the command line is actually a bug (see bug #1082279).

Also, using the _cli_values attribute is clearly poking into private
implementation details.

Fix both issues by registering the opt using register_cli_opt() and
accessing its value the normal way.

Change-Id: If170dcd96daae5b4c3d7cdebed914df417c2209b
2012-11-26 16:19:36 +00:00
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