Omitting "ISO offers :" and "ISO loaded :" if no ISO was loaded at all

xorriso/base_obj.c

@@ -168,6 +168,7 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
  m->do_follow_mount= 1;
  m->do_global_uid= 0;
  m->global_uid= 0;
+ m->isofs_size= 0;
  m->isofs_has_what= 0;
  m->tree_loaded= 0;
  m->rr_loaded= 0;