m/cli/metroctl: reformat

Another annoying instance of my local gofmt/goimports having stronger
opinions about code formatting than our CI. Really ought to synchronize
them together ASAP.

Change-Id: Ia4b9a30be3c19c0fc755d7659f26e7233b4f4598
Reviewed-on: https://review.monogon.dev/c/monogon/+/435
Reviewed-by: Mateusz Zalega <mateusz@monogon.tech>
diff --git a/metropolis/cli/metroctl/core/install.go b/metropolis/cli/metroctl/core/install.go
index f4c6b96..e894079 100644
--- a/metropolis/cli/metroctl/core/install.go
+++ b/metropolis/cli/metroctl/core/install.go
@@ -11,6 +11,7 @@
 	"github.com/diskfs/go-diskfs/filesystem"
 	"github.com/diskfs/go-diskfs/partition/gpt"
 	"google.golang.org/protobuf/proto"
+
 	"source.monogon.dev/metropolis/proto/api"
 )