Bump to v4.16.2.

_cloneBuffer.js

@@ -1,4 +1,20 @@
-define([], function() {
+define(['./_root'], function(root) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /** Detect free variable `exports`. */
+  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
+
+  /** Detect free variable `module`. */
+  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
+
+  /** Detect the popular CommonJS extension `module.exports`. */
+  var moduleExports = freeModule && freeModule.exports === freeExports;
+
+  /** Built-in value references. */
+  var Buffer = moduleExports ? root.Buffer : undefined,
+      allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;
 
   /**
    * Creates a clone of  `buffer`.
@@ -12,7 +28,9 @@ define([], function() {
     if (isDeep) {
       return buffer.slice();
     }
-    var result = new buffer.constructor(buffer.length);
+    var length = buffer.length,
+        result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
+
     buffer.copy(result);
     return result;
   }