minor style tweaks
minor style tweaks

shimonenator/couchbasedown,calvinmetcalf/SQLdown,snowyu/node-abstract-nosql,ralphtheninja/abstract-leveldown,Level/abstract-leveldown,ralphtheninja/abstract-leveldown,calvinmetcalf/SQLdown,bigeasy/abstract-leveldown,bryce-gibson/SQLdown,bryce-gibson/SQLdown,watson/abstract-leveldown