fix typo in class.go (#2423)
fix typo in class.go (#2423)


MHBauer/service-catalog,MHBauer/service-catalog,kubernetes-incubator/service-catalog,kubernetes-sigs/service-catalog,kubernetes-sigs/service-catalog,kubernetes-sigs/service-catalog,kubernetes-incubator/service-catalog,kubernetes-sigs/service-catalog,MHBauer/service-catalog,kubernetes-incubator/service-catalog,kubernetes-incubator/service-catalog,kubernetes-sigs/service-catalog,MHBauer/service-catalog,kubernetes-sigs/service-catalog,MHBauer/service-catalog,kubernetes-incubator/service-catalog,MHBauer/service-catalog,kubernetes-incubator/service-catalog