* vm_dump.c (rb_vmdebug_stack_dump_all_threads): cast to `void*`.

Pointed out at
  <fbc1deca89 (commitcomment-21839826)>


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58421 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

vm_dump.c

@@ -1054,7 +1054,7 @@ rb_vmdebug_stack_dump_all_threads(void)
     rb_thread_t *th = NULL;
 
     list_for_each(&vm->living_threads, th, vmlt_node) {
-	fprintf(stderr, "th: %p, native_id: %lx\n", th, (unsigned long)th->thread_id);
+	fprintf(stderr, "th: %p, native_id: %p\n", th, (void *)th->thread_id);
 	rb_vmdebug_stack_dump_raw(th, th->cfp);
     }
 }