# logrotate -d /etc/logrotate.conf
rotating pattern: /mylogs/log  1048576 bytes (10 rotations)
empty log files are rotated, old logs are removed
considering log /mylogs/log
  log needs rotating
rotating log /mylogs/log, log->rotateCount is 10
dateext suffix '-20171126'
glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
glob finding old rotated logs failed
copying /mylogs/log to /mylogs/log-20171126
truncating /mylogs/log