fix code style

Signed-off-by: lixd <xueduan.li@gmail.com>

pkg/kubelet/container/testing/fake_runtime.go

@@ -81,12 +81,6 @@ type FakeVersion struct {
 	Version string
 }
 
-func snapshot(imageList []kubecontainer.Image) []kubecontainer.Image {
-	result := make([]kubecontainer.Image, len(imageList))
-	copy(result, imageList)
-	return result
-}
-
 func (fv *FakeVersion) String() string {
 	return fv.Version
 }
@@ -371,6 +365,12 @@ func (f *FakeRuntime) ListImages(_ context.Context) ([]kubecontainer.Image, erro
 	return snapshot(f.ImageList), f.Err
 }
 
+func snapshot(imageList []kubecontainer.Image) []kubecontainer.Image {
+	result := make([]kubecontainer.Image, len(imageList))
+	copy(result, imageList)
+	return result
+}
+
 func (f *FakeRuntime) RemoveImage(_ context.Context, image kubecontainer.ImageSpec) error {
 	f.Lock()
 	defer f.Unlock()