MB-10929: Print log file at the end of the script

Change-Id: Id59c86b38bc92f68803f2b8edb8c9cafbac18d73
Reviewed-on: http://review.couchbase.org/38518
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Reviewed-by: Eric Limare <eric.limare@couchbase.com>
Tested-by: Eric Limare <eric.limare@couchbase.com>