Check for unused function arguments (#6583)

* eslint: Check for unused function arguments

* eslint: Ignore unused '_' in argument list

Also allow any number of '_' e.g., '__' or '___' which is to be used sparingly

* Remove and rename unused arguments

1 files changed, 1 insertions, 1 deletions

diff --git a/test/lib/util.js b/test/lib/util.js
index 858565bb9..4c5d789d1 100644
--- a/test/lib/util.js
+++ b/test/lib/util.js
@@ -6,7 +6,7 @@ module.exports = {
 }
 
 function timeout (time) {
-  return new Promise((resolve, reject) => {
+  return new Promise((resolve) => {
     setTimeout(resolve, time || 1500)
   })
 }