test: add a test description

grantgasp · MylesBorins · commit 5e2231e40717 · 2017-11-28T13:11:06.000+09:00
PR-URL: #16833 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com> Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
diff --git a/test/parallel/test-cluster-fork-env.js b/test/parallel/test-cluster-fork-env.js
@@ -1,5 +1,10 @@
 'use strict';
 require('../common');
+
+// This test checks that arguments provided to cluster.fork() will create
+// new environment variables and override existing environment variables
+// in the created worker process.
+
 const assert = require('assert');
 const cluster = require('cluster');
 
