Closed memory leaks detected by valgrind

libisoburn/trunk/xorriso/write_run.c

@@ -1215,6 +1215,7 @@ int Xorriso_pacifier_loop(struct XorrisO *xorriso, struct burn_drive *drive,
    break;
    }
  }
+ iso_image_unref(image);
  return(1);
 }