make build/release.sh pass shellcheck

build/release.sh

@@ -25,7 +25,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/build/common.sh"
 source "${KUBE_ROOT}/build/lib/release.sh"
 

hack/.shellcheck_failures

@@ -6,7 +6,6 @@
 ./build/package-tarballs.sh
 ./build/release-images.sh
 ./build/release-in-a-container.sh
-./build/release.sh
 ./build/util.sh
 ./cluster/addons/addon-manager/kube-addons.sh
 ./cluster/addons/fluentd-elasticsearch/es-image/run.sh