The source project of this merge request has been removed.
Improves the reliability of the postrotate script.
This should stop the postrotate script from incorrectly assuming that debian-sys-maint user is incorrectly configured (or some other problem with mysqld) if logrotate is run at the same time that mysql is starting up (Eg, at system boot).
See: https://bugs.launchpad.net/ubuntu/+source/mysql-8.0/+bug/1850980