fix golint failures on pkg/kubectl/cmd/completion pkg/kubectl/cmd/cp pkg/kubectl/cmd/edit

pkg/kubectl/cmd/edit/edit.go

@@ -67,6 +67,7 @@ var (
 		kubectl edit deployment/mydeployment -o yaml --save-config`))
 )
 
+// NewCmdEdit creates the `edit` command
 func NewCmdEdit(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
 	o := editor.NewEditOptions(editor.NormalEditMode, ioStreams)
 	o.ValidateOptions = cmdutil.ValidateOptions{EnableValidation: true}