LU-11147 llite: add newline to llite.*.offset_stats

LU-11147 llite: add newline to llite.*.offset_stats

The llite.*.offset_stats file is missing a newline in the output.

Fixes: 49577875

Test-Parameters: trivial
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: Ieade87f500c4fa24a0a7b8bd35d65f18dd5681ba
Reviewed-on: https://review.whamcloud.com/32817
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>