Update the backup command's default ns to vcluster-platform

cmd/vclusterctl/cmd/platform/backup/management.go

@@ -68,7 +68,7 @@ vcluster platform backup management
 	}
 
 	c.Flags().StringSliceVar(&cmd.Skip, "skip", []string{}, "What resources the backup should skip. Valid options are: users, teams, accesskeys, sharedsecrets, clusters and clusteraccounttemplates")
-	c.Flags().StringVar(&cmd.Namespace, "namespace", "loft", product.Replace("The namespace vCluster platform was installed into"))
+	c.Flags().StringVar(&cmd.Namespace, "namespace", "vcluster-platform", product.Replace("The namespace vCluster platform was installed into"))
 	c.Flags().StringVar(&cmd.Filename, "filename", "backup.yaml", "The filename to write the backup to")
 	return c
 }