Adjust scripts to be go v1.14 compatible

hack/shellHelpers.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+# TODO: Make the code ignorant of the CI environment "brand name".
+# We used to run CI tests on travis, and disabled certain tests
+# when running there.  Now we run on Prow, so look for that.
+# https://github.com/kubernetes/test-infra/blob/master/prow/jobs.md
+# Might be useful to eschew using the brand name of the CI environment
+# (replace "travis" with "RemoteCI" or something - not just switch to "prow").
+
+function onLinuxAndNotOnRemoteCI {
+  [[ ("linux" == "$(go env GOOS)") && (-z ${PROW_JOB_ID+x}) ]] && return
+  false
+}