Fixing style errors reported by Rubocop, adding better output formatting

As fixed in:
alexmoore/taste-of-riak@c0cca9dfcd4272db0520ffb75346cc75c58360a7,
alexmoore/taste-of-riak@9e7f3091b0001d9533907af479ec6d8d08661961, and
alexmoore/taste-of-riak@755271fd63277202d2dc3a302e3bbe162f5135c3.