return get(FessConfig.PASSWORD_INVALID_ADMIN_PASSWORDS);
        }

        @Override
        protected java.util.Map<String, String> prepareGeneratedDefaultMap() {
            java.util.Map<String, String> defaultMap = super.prepareGeneratedDefaultMap();
            defaultMap.put(FessConfig.DOMAIN_TITLE, "Fess");

  - build: Use go-runner:buster-v2.0.1 (built using go1.15.1)
  - bazel: Replace --features with Starlark build settings flag
  - hack/lib/util.sh: some bash cleanups
    
    - switched one spot to use kube::logging
    - make kube::util::find-binary return an error when it doesn't find
      anything so that hack scripts fail fast instead of with '' binary not
      found errors.