Allow arbitrary argument order
Allow arbitrary argument order

Also includes
- delete trailing whitespaces, typo fixes
- output heading information to standard error

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