http: fixed failing test

Author: ShogunPanda

test/parallel/test-stream-finished.js

@@ -560,6 +560,7 @@ testClosed((opts) => new Writable({ write() {}, ...opts }));
 
 {
   const server = http.createServer(common.mustCall((req, res) => {
+    res.writeHead(200, { 'Connection': 'close' });
     res.on('close', common.mustCall(() => {
       finished(res, common.mustCall(() => {
         server.close();
@@ -578,6 +579,7 @@ testClosed((opts) => new Writable({ write() {}, ...opts }));
 
 {
   const server = http.createServer(common.mustCall((req, res) => {
+    res.writeHead(200, { 'Connection': 'close' });
     req.on('close', common.mustCall(() => {
       finished(req, common.mustCall(() => {
         server.close();
@@ -651,6 +653,7 @@ testClosed((opts) => new Writable({ write() {}, ...opts }));
 
 {
   const server = http.createServer(common.mustCall(function(req, res) {
+    res.writeHead(200, { 'Connection': 'close' });
     fs.createReadStream(__filename).pipe(res);
     finished(res, common.mustCall(function(err) {
       assert.strictEqual(err, undefined);