nvme-cli code quality

Hi Keith,

can we please enforce linux-nvme list based reviews for nvme-cli?

It seems like a lot of code gets merged really quickly while still in horrible shape (e.g. the recent seagate plugin, not that other plugins are that great either).

I think we should try to enforce our normal quality requirements instead of letting it turn into a huge mess. Especially as reviews on a closed platform like github just don't seem to work at all.