Make sure to error on test

This works around set -e not working in this scenario.

test/test-govet.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+# check that go vet passes
+echo running test-govet.sh
+ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && cd .. && pwd )"	# dir!
+cd "${ROOT}"
+
+go vet && echo PASS || exit 1	# since it doesn't output an ok message on pass