formate sync.go file

Signed-off-by: Hussein Firas <[email protected]>

cmd/skopeo/sync.go

@@ -798,4 +798,4 @@ func (opts *syncOptions) run(args []string, stdout io.Writer) (retErr error) {
 		return nil
 	}
 	return errors.New("Sync failed due to previous reported error(s) for one or more images")
-}
+}