tree b54c68a60e53d2c38a61a2684bade717a015ffd8
parent d5037078a6ea28342a3a1d2adad3d5cd97dad55a
author Yuta HIGUCHI <y-higuchi@onlab.us> 1403201240 -0700
committer Gerrit Code Review <gerrit2@gerrit.onos.onlab.us> 1403634003 -0700

Log rolling to preserve .gz extension

- Workaround to avoid rotated log to end up in a filename .log.gz.1
  it should now become .log.1.gz
  Hopefully this will make it easier to gunzip rotated and gzipped rolled log.

One long ONOS core "run" will  result in files like
  onos.onos-vm.log
  onos.onos-vm.1.log.gz
  onos.onos-vm.2.log.gz
  ...
when new "run" is started (e.g., ONOS restart), old log will be renamed like:
  onos.onos-vm.log => onos.onos-vm.log.1
  onos.onos-vm.1.log.gz => onos.onos-vm.1.log.1.gz
  onos.onos-vm.2.log.gz => onos.onos-vm.2.log.1.gz
  ...

Behavior of all other log, which does not rotate within a single run is not changed.

Change-Id: Id8dffb1f65fcb7c59f79203405c5c697b1751685