updating test harness
[COOK-2966] Address foodcritic failures

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-4182] - Template parse failure in /etc/init/mysql.conf (data_dir)

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-4198] - Added missing tunable

Signed-off-by: Sean OMeara <someara@opscode.com>