Merge pull request #64118 from deads2k/cli-65-podspec

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

move updatepodspecforobject out of factory

Updating a podspec is a polymorphic helper, but it isn't a factory method.

@kubernetes/sig-cli-maintainers 
/assign @juanvallejo 

```release-note
NONE
```

pkg/kubectl/cmd/set/set_env.go

@@ -36,6 +36,7 @@ import (
 	"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
 	"k8s.io/kubernetes/pkg/kubectl/genericclioptions/printers"
 	"k8s.io/kubernetes/pkg/kubectl/genericclioptions/resource"
+	"k8s.io/kubernetes/pkg/kubectl/polymorphichelpers"
 	"k8s.io/kubernetes/pkg/kubectl/scheme"
 )
 
@@ -114,7 +115,7 @@ type EnvOptions struct {
 	output                 string
 	dryRun                 bool
 	builder                func() *resource.Builder
-	updatePodSpecForObject func(obj runtime.Object, fn func(*v1.PodSpec) error) (bool, error)
+	updatePodSpecForObject polymorphichelpers.UpdatePodSpecForObjectFunc
 	namespace              string
 	enforceNamespace       bool
 	clientset              *kubernetes.Clientset
@@ -192,7 +193,7 @@ func (o *EnvOptions) Complete(f cmdutil.Factory, cmd *cobra.Command, args []stri
 		return fmt.Errorf("all resources must be specified before environment changes: %s", strings.Join(args, " "))
 	}
 
-	o.updatePodSpecForObject = f.UpdatePodSpecForObject
+	o.updatePodSpecForObject = polymorphichelpers.UpdatePodSpecForObjectFn
 	o.output = cmdutil.GetFlagString(cmd, "output")
 	o.dryRun = cmdutil.GetDryRunFlag(cmd)