Add semicolon for tdd exports

test/reduceSuccessive/reduceSuccessive.js

@@ -1,3 +1,3 @@
 const reduceSuccessive = (arr, fn, acc) =>
 arr.reduce((res, val, i, arr) => (res.push(fn(res.slice(-1)[0], val, i, arr)), res), [acc]);
-module.exports = reduceSuccessive
+module.exports = reduceSuccessive;