[geeklog-hg] [Geeklog-Core/geeklog] 742351: Fixed errors with PHP 8.0.0

[Kenji ITO]

  Branch: refs/heads/master
  Home:   https://github.com/Geeklog-Core/geeklog
  Commit: 742351723c53c421404bacd6fda087b7bf9e50ae
      https://github.com/Geeklog-Core/geeklog/commit/742351723c53c421404bacd6fda087b7bf9e50ae
  Author: mystralkk <mystralkk at gmail.com>
  Date:   2020-12-20 (Sun, 20 Dec 2020)

  Changed paths:
    M system/classes/dbbackup.class.php

  Log Message:
  -----------
  Fixed errors with PHP 8.0.0