lib: use const to define constants

This commit replaces a number of var statements throughout
the lib code with const statements.

PR-URL: https://github.com/iojs/io.js/pull/541
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 8 insertions, 10 deletions

diff --git a/lib/_tls_legacy.js b/lib/_tls_legacy.js
index b52755f440..f5be838d05 100644
--- a/lib/_tls_legacy.js
+++ b/lib/_tls_legacy.js
@@ -1,13 +1,13 @@
 'use strict';
 
-var assert = require('assert');
-var events = require('events');
-var stream = require('stream');
-var tls = require('tls');
-var util = require('util');
-var common = require('_tls_common');
-
-var Timer = process.binding('timer_wrap').Timer;
+const assert = require('assert');
+const events = require('events');
+const stream = require('stream');
+const tls = require('tls');
+const util = require('util');
+const common = require('_tls_common');
+const debug = util.debuglog('tls-legacy');
+const Timer = process.binding('timer_wrap').Timer;
 var Connection = null;
 try {
   Connection = process.binding('crypto').Connection;
@@ -15,8 +15,6 @@ try {
   throw new Error('node.js not compiled with openssl crypto support.');
 }
 
-var debug = util.debuglog('tls-legacy');
-
 function SlabBuffer() {
   this.create();
 }