Bug fix: -as mkisofs -no-emul-boot without -boot-load-size defaulted to size 4

xorriso/xorriso_private.h

@@ -410,6 +410,8 @@ struct XorrisO { /* the global context of xorriso */
                       */
  int boot_emul_default;  /* 1= boot_image_emul is still default */
  off_t boot_image_load_size;
+ int boot_img_size_default;  /* 1= boot_image_load_size is still default */
+ int boot_img_full_size;  /* 1= override boot_image_load_size by image size */
  unsigned char boot_id_string[29];
  unsigned char boot_selection_crit[21];