fix shellcheck lint errors in cluster and hack scripts

hack/.shellcheck_failures

@@ -12,7 +12,6 @@
 ./cluster/gce/gci/health-monitor.sh
 ./cluster/gce/gci/master-helper.sh
 ./cluster/gce/gci/mounter/stage-upload.sh
-./cluster/gce/gci/node-helper.sh
 ./cluster/gce/gci/shutdown.sh
 ./cluster/gce/list-resources.sh
 ./cluster/gce/upgrade-aliases.sh
@@ -34,7 +33,6 @@
 ./cluster/test-e2e.sh
 ./cluster/test-network.sh
 ./cluster/test-smoke.sh
-./cluster/update-storage-objects.sh
 ./cluster/validate-cluster.sh
 ./hack/cherry_pick_pull.sh
 ./hack/generate-bindata.sh
@@ -79,7 +77,6 @@
 ./hack/update-generated-kms-dockerized.sh
 ./hack/update-generated-protobuf-dockerized.sh
 ./hack/update-generated-runtime-dockerized.sh
-./hack/update-generated-runtime.sh
 ./hack/update-godep-licenses.sh
 ./hack/update-gofmt.sh
 ./hack/update-openapi-spec.sh

hack/update-generated-runtime.sh

@@ -18,12 +18,12 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 
 # NOTE: All output from this script needs to be copied back to the calling
 # source tree.  This is managed in kube::build::copy_output in build/common.sh.
 # If the output set is changed update that function.
 
-${KUBE_ROOT}/build/run.sh hack/update-generated-runtime-dockerized.sh "$@"
+"${KUBE_ROOT}/build/run.sh" hack/update-generated-runtime-dockerized.sh "$@"
 
 # ex: ts=2 sw=2 et filetype=sh