* Remove package-scoped vars in cmd package
* Run gofmt on all cmd package files
* Re-add missing Args setting on check command
Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>
Cobra supports bash and zsh completion code generation, but our cli
project was not leveraging it.
Add a 'completion' command to the conduit cli, which outputs bash and
zsh completion code.
Signed-off-by: Andrew Seigner <andrew@sig.gy>