Test migration to jest by hand

Apparently using regular expressions is way easier.

test/cleanObj/cleanObj.js

@@ -5,7 +5,7 @@ cleanObj(obj[key], keysToKeep, childIndicator);
 } else if (!keysToKeep.includes(key)) {
 delete obj[key];
 }
-});
+
 return obj;
 };
 module.exports = cleanObj;