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, 2 insertions, 2 deletions

diff --git a/test/parallel/test-tls-no-sslv3.js b/test/parallel/test-tls-no-sslv3.js
index cc30762574..6298af11d2 100644
--- a/test/parallel/test-tls-no-sslv3.js
+++ b/test/parallel/test-tls-no-sslv3.js
@@ -40,7 +40,7 @@ server.listen(common.PORT, '127.0.0.1', function() {
   client.stdout.pipe(process.stdout);
   client.stderr.pipe(process.stderr);
   client.stderr.setEncoding('utf8');
-  client.stderr.on('data', data => stderr += data);
+  client.stderr.on('data', (data) => stderr += data);
 
   client.once('exit', common.mustCall(function(exitCode) {
     assert.equal(exitCode, 1);
@@ -48,7 +48,7 @@ server.listen(common.PORT, '127.0.0.1', function() {
   }));
 });
 
-server.on('tlsClientError', err => errors.push(err));
+server.on('tlsClientError', (err) => errors.push(err));
 
 process.on('exit', function() {
   if (/unknown option -ssl3/.test(stderr)) {