Add confirm flag to velero plugin add

Signed-off-by: Tiger Kaovilai <tkaovila@redhat.com>

pkg/cmd/cli/backuplocation/delete.go

@@ -31,6 +31,7 @@ import (
 	"github.com/vmware-tanzu/velero/pkg/client"
 	"github.com/vmware-tanzu/velero/pkg/cmd"
 	"github.com/vmware-tanzu/velero/pkg/cmd/cli"
+	"github.com/vmware-tanzu/velero/pkg/cmd/util/confirm"
 )
 
 // NewDeleteCommand creates and returns a new cobra command for deleting backup-locations.
@@ -67,7 +68,7 @@ func NewDeleteCommand(f client.Factory, use string) *cobra.Command {
 
 // Run performs the delete backup-location operation.
 func Run(f client.Factory, o *cli.DeleteOptions) error {
-	if !o.Confirm && !cli.GetConfirmation() {
+	if !o.Confirm && !confirm.GetConfirmation() {
 		// Don't do anything unless we get confirmation
 		return nil
 	}