test: fix incorrect indentation

Indentation is off in test-http-server-unconsume-consume.js.
The linter isn't complaining, but it probably should be.

PR-URL: nodejs#11219
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-http-server-unconsume-consume.js

@@ -13,7 +13,7 @@ testServer.on('connect', common.mustCall((req, socket, head) => {
 }));
 testServer.listen(0, common.mustCall(() => {
   http.request({
-      port: testServer.address().port,
-      method: 'CONNECT'
+    port: testServer.address().port,
+    method: 'CONNECT'
   }, (res) => {}).end();
 }));