lib/task_queues: change var to let/const

Author: jens-cappelle

lib/internal/process/task_queues.js

@@ -107,15 +107,15 @@ function nextTick(callback) {
   if (process._exiting)
     return;
 
-  var args;
+  let args;
   switch (arguments.length) {
     case 1: break;
     case 2: args = [arguments[1]]; break;
     case 3: args = [arguments[1], arguments[2]]; break;
     case 4: args = [arguments[1], arguments[2], arguments[3]]; break;
     default:
       args = new Array(arguments.length - 1);
-      for (var i = 1; i < arguments.length; i++)
+      for (let i = 1; i < arguments.length; i++)
         args[i - 1] = arguments[i];
   }