Merge pull request #24 from bxt/fix-23-node-deprecation

Use "Object.assign" instead of node's deprecated "util._extend"

Author: davedoesdev

lib/index.js

@@ -9,7 +9,7 @@ exports = module.exports = function(opts) {
 exports.decode = exports
 
 var Decoder = exports.Decoder = function(opts) {
-  this.opts = util._extend({
+  this.opts = Object.assign({
     lengthSize: 4,
     maxSize: 0,
     unbuffered: false