Comment 4 for bug 1821582

[VERIFICATION XENIAL #3]

$ logrotate -vdf /etc/logrotate.conf: works as expected

...
renaming /var/log/syslog.7.gz to /var/log/syslog.8.gz (rotatecount 7, logstart 1, i 7),
renaming /var/log/syslog.6.gz to /var/log/syslog.7.gz (rotatecount 7, logstart 1, i 6),
renaming /var/log/syslog.5.gz to /var/log/syslog.6.gz (rotatecount 7, logstart 1, i 5),
renaming /var/log/syslog.4.gz to /var/log/syslog.5.gz (rotatecount 7, logstart 1, i 4),
renaming /var/log/syslog.3.gz to /var/log/syslog.4.gz (rotatecount 7, logstart 1, i 3),
renaming /var/log/syslog.2.gz to /var/log/syslog.3.gz (rotatecount 7, logstart 1, i 2),
renaming /var/log/syslog.1.gz to /var/log/syslog.2.gz (rotatecount 7, logstart 1, i 1),
renaming /var/log/syslog.0.gz to /var/log/syslog.1.gz (rotatecount 7, logstart 1, i 0),
renaming /var/log/syslog to /var/log/syslog.1
creating new /var/log/syslog mode = 0640 uid = 104 gid = 4
running postrotate script
running script with arg /var/log/syslog: "
  /usr/lib/rsyslog/rsyslog-rotate
"
removing old log /var/log/syslog.8.gz
error: error opening /var/log/syslog.8.gz: No such file or directory
switching euid to 0 and egid to 0