Skip yamlfmt on jenkins too

test/test-yamlfmt.sh

@@ -5,8 +5,8 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-if env | grep -q '^TRAVIS=true$'; then
+if env | grep -q -e '^TRAVIS=true$' -e '^JENKINS_URL='; then
-	echo "Travis gives wonky results here, skipping test!"
+	echo "Travis and Jenkins give wonky results here, skipping test!"
 	exit 0
 fi