Fix typo on atom, thanks to unit tests
Fix typo on atom, thanks to unit tests

yangchengjian/riak_cs,dragonfax/riak_cs,GabrielNicolasAvellaneda/riak_cs,GabrielNicolasAvellaneda/riak_cs,basho/riak_cs,dragonfax/riak_cs,sdebnath/riak_cs,yangchengjian/riak_cs,sdebnath/riak_cs,sdebnath/riak_cs,yangchengjian/riak_cs,basho/riak_cs,GabrielNicolasAvellaneda/riak_cs,basho/riak_cs,sdebnath/riak_cs,yangchengjian/riak_cs,dragonfax/riak_cs,basho/riak_cs,GabrielNicolasAvellaneda/riak_cs,dragonfax/riak_cs