Akihiro Motoki 8d63e3f0c3 Use cliff formattable columns in image commands
Related functional tests are converted into JSON format.
Otherwise, it is not easy to check results.

Partial-Bug: #1687955
Partially implement blueprint osc-formattable-columns

Change-Id: Ib82e15738544975fede0c54cc5eaf239f4c67277
2019-06-22 13:36:46 -05:00
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