Apply minor audit tool security update

audit/run.js

@@ -65,7 +65,7 @@ function _getLocalResourceContents (fileLocation, callback) {
 
                 fileSystem.open(fileLocation, 'r', function (error, fileDescriptor) {
 
-                    var buffer = new Buffer(statistics.size);
+                    var buffer = Buffer.alloc(statistics.size);
 
                     fileSystem.read(fileDescriptor, buffer, 0, buffer.length, null, function (error, bytesRead, buffer) {