reformatted ns_config

Change-Id: Iba6114551fc333d38452dcf0650970771b3c2f8c
Reviewed-on: http://review.couchbase.org/44634
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>