multi: fix make lint

Fixes new lint errors caught by the latest version.

kvdb/etcd/config.go

@@ -4,7 +4,7 @@ import "fmt"
 
 // Config holds etcd configuration alongside with configuration related to our higher level interface.
 //
-// nolint:lll
+//nolint:lll
 type Config struct {
 	Embedded bool `long:"embedded" description:"Use embedded etcd instance instead of the external one. Note: use for testing only."`