make check WHAT=pkg/kubectl
make check WHAT=pkg/kubectl KUBE_TEST_ARGS="-run TestOfferStorage" GOFLAGS=-v
go run hack/e2e.go -v --test
// use new/clear $GOPATH
export KPATH=$HOME/code/kubernetes
mkdir -p $KPATH/src/k8s.io
cd $KPATH/src/k8s.io
// restore the dependencies into new $GOPATH
godep restore
// Update dependencies, e.g. godep get
rm -rf Godeps
rm -rf vendor
./hack/godep-save.sh