test: use arrow function for callback in stream test

Trott · MylesBorins · commit 59c9592679d6 · 2019-12-17T17:06:48.000-05:00
PR-URL: #30561 Reviewed-By: Denys Otrishko <shishugi@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
diff --git a/test/sequential/test-stream-writable-clear-buffer.js b/test/sequential/test-stream-writable-clear-buffer.js
@@ -23,7 +23,7 @@ const testStream = new StreamWritable();
 testStream.cork();
 
 for (let i = 1; i <= 5; i++) {
-  testStream.write(i, function() {
+  testStream.write(i, () => {
     assert.strictEqual(
       testStream._writableState.bufferedRequestCount,
       testStream._writableState.getBuffer().length,
