Fixed typo in ServiceProvider class.
Fixed typo in ServiceProvider class.

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