Fix typos, whitespace and test tags.
Fix typos, whitespace and test tags.

tangrams/variant,edwiincao/variant,tangrams/variant,tangrams/variant,daniel-j-h/variant,edwiincao/variant,tempbottle/variant,edwiincao/variant,daniel-j-h/variant,tempbottle/variant,daniel-j-h/variant,tempbottle/variant