test: update arrow function style

This commit applies new arrow function linting rules across the
codebase. As it turns out, the only offenders were in the test
directory.

PR-URL: https://github.com/nodejs/node/pull/4813
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/test/parallel/test-net-socket-local-address.js b/test/parallel/test-net-socket-local-address.js
index e0ef1ee5ed..379bed363e 100644
--- a/test/parallel/test-net-socket-local-address.js
+++ b/test/parallel/test-net-socket-local-address.js
@@ -13,7 +13,7 @@ var conns = 0;
 var clientLocalPorts = [];
 var serverRemotePorts = [];
 const client = new net.Socket();
-const server = net.createServer(socket => {
+const server = net.createServer((socket) => {
   serverRemotePorts.push(socket.remotePort);
   socket.end();
 });