auth: fix Init method

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

auth/auth.go

@@ -30,7 +30,7 @@ var (
 // Auth provides authentication and authorization
 type Auth interface {
 	// Init the auth
-	Init(opts ...Option)
+	Init(opts ...Option) error
 	// Options set for auth
 	Options() Options
 	// Generate a new account

auth/noop.go

@@ -14,10 +14,11 @@ func (n *noopAuth) String() string {
 }
 
 // Init the auth
-func (n *noopAuth) Init(opts ...Option) {
+func (n *noopAuth) Init(opts ...Option) error {
 	for _, o := range opts {
 		o(&n.opts)
 	}
+	return nil
 }
 
 // Options set for auth

util/reflect/reflect.go

@@ -74,7 +74,6 @@ func IsEmpty(v reflect.Value) bool {
 			}
 		}
 	default:
-		fmt.Printf("%#+v\n", v)
 		return false
 	}
 	return true