fix shellcheck failures on kube-down.sh kubeadm.sh get-build.sh

cluster/kube-down.sh

@@ -20,7 +20,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 
 if [ -f "${KUBE_ROOT}/cluster/env.sh" ]; then
     source "${KUBE_ROOT}/cluster/env.sh"

cluster/kubeadm.sh

@@ -18,7 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=${KUBE_ROOT:-$(dirname "${BASH_SOURCE}")/..}
+KUBE_ROOT=${KUBE_ROOT:-$(dirname "${BASH_SOURCE[0]}")/..}
 source "${KUBE_ROOT}/cluster/clientbin.sh"
 
 # If KUBEADM_PATH isn't set, gather up the list of likely places and use ls

hack/.shellcheck_failures

@@ -24,10 +24,8 @@
 ./cluster/images/etcd-empty-dir-cleanup/etcd-empty-dir-cleanup.sh
 ./cluster/juju/prereqs/ubuntu-juju.sh
 ./cluster/juju/util.sh
-./cluster/kube-down.sh
 ./cluster/kube-up.sh
 ./cluster/kube-util.sh
-./cluster/kubeadm.sh
 ./cluster/kubectl.sh
 ./cluster/kubemark/gce/config-default.sh
 ./cluster/kubemark/iks/config-default.sh
@@ -54,7 +52,6 @@
 ./hack/e2e-node-test.sh
 ./hack/generate-bindata.sh
 ./hack/generate-docs.sh
-./hack/get-build.sh
 ./hack/ginkgo-e2e.sh
 ./hack/godep-restore.sh
 ./hack/godep-save.sh

hack/get-build.sh

@@ -18,7 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 
 source "${KUBE_ROOT}/cluster/common.sh"