[UPDATE] Rename argument "--varDir" to "-varDir"

Signed-off-by: poyaz <pooya_azarpour@yahoo.com>

operator/backupcontroller/backup_utils.go

@@ -75,7 +75,7 @@ func (b *BackupExecutor) createServiceAccountAndBinding(ctx context.Context) err
 }
 
 func (b *BackupExecutor) setupArgs() []string {
-	args := []string{"--varDir", cfg.Config.PodVarDir}
+	args := []string{"-varDir", cfg.Config.PodVarDir}
 	if len(b.backup.Spec.Tags) > 0 {
 		args = append(args, executor.BuildTagArgs(b.backup.Spec.Tags)...)
 	}