test: use const for all require() calls

PR-URL: https://github.com/nodejs/node/pull/10550
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/test/parallel/test-stdout-cannot-be-closed-child-process-pipe.js b/test/parallel/test-stdout-cannot-be-closed-child-process-pipe.js
index a138108fae..bfc7a1ddf4 100644
--- a/test/parallel/test-stdout-cannot-be-closed-child-process-pipe.js
+++ b/test/parallel/test-stdout-cannot-be-closed-child-process-pipe.js
@@ -1,6 +1,6 @@
 'use strict';
 require('../common');
-var assert = require('assert');
+const assert = require('assert');
 
 if (process.argv[2] === 'child')
   process.stdout.end('foo');
@@ -8,7 +8,7 @@ else
   parent();
 
 function parent() {
-  var spawn = require('child_process').spawn;
+  const spawn = require('child_process').spawn;
   var child = spawn(process.execPath, [__filename, 'child']);
   var out = '';
   var err = '';