[geeklog-hg] [Geeklog-Core/geeklog] 23e863: Fixed some errors with PHP 8.1

[Kenji ITO]

  Branch: refs/heads/master
  Home:   https://github.com/Geeklog-Core/geeklog
  Commit: 23e8632c7db93ee0a59af1fee69cf1cbc6b46817
      https://github.com/Geeklog-Core/geeklog/commit/23e8632c7db93ee0a59af1fee69cf1cbc6b46817
  Author: mystralkk <mystralkk at gmail.com>
  Date:   2022-01-20 (Thu, 20 Jan 2022)

  Changed paths:
    M plugins/xmlsitemap/xmlsitemap.class.php
    M system/classes/upload.class.php

  Log Message:
  -----------
  Fixed some errors with PHP 8.1