Fix expects in test
Fix expects in test

my_dict.keys() returns a list in python 2 but python3 returns a
dict_keys object.

Jenselme/OWSLib,QuLogic/OWSLib,kalxas/OWSLib,dblodgett-usgs/OWSLib,bird-house/OWSLib,geographika/OWSLib,tomkralidis/OWSLib,b-cube/OWSLib,mbertrand/OWSLib,gfusca/OWSLib,kwilcox/OWSLib,robmcmullen/OWSLib,JuergenWeichand/OWSLib,menegon/OWSLib,ocefpaf/OWSLib,geopython/OWSLib,KeyproOy/OWSLib,jachym/OWSLib