PEP8 line-length fix.
PEP8 line-length fix.

GabrielNicolasAvellaneda/riak-python-client,basho/riak-python-client,GabrielNicolasAvellaneda/riak-python-client,bmess/riak-python-client,basho/riak-python-client,basho/riak-python-client,bmess/riak-python-client