Remove dead if-resp-nil checks in tagCmd and approveRoutesCmd; gRPC returns either an error or a valid response, never (nil, nil). Rename HasMachineOutputFlag to hasMachineOutputFlag since it has a single internal caller in root.go.
Remove dead if-resp-nil checks in tagCmd and approveRoutesCmd; gRPC returns either an error or a valid response, never (nil, nil). Rename HasMachineOutputFlag to hasMachineOutputFlag since it has a single internal caller in root.go.