Fix vendor kwarg handling
Fix vendor kwarg handling

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