nvme-cli: JSON format Memory leak fixes.

[Keith Busch]

On Thu, Feb 23, 2017 at 06:39:30PM -0800, Chaitanya Kulkarni wrote:
> 
> Hi,
> 
> Following patch series provides multiple memory leak fixes
> for nvme-cli commands. Memory leaks were found especially
> when using JSON format for following list of commands:-
>  1. id-ctrl.
>  2. id-ns.
>  3. error-log.
>  4. resv-report.
>  5. smart-log.
>  6. fw-log.
>  7. json_add_smart_log().

Thanks, all applied.