npm and error messages

node_modules/is-binary-path/index.js

@@ -0,0 +1,12 @@
+'use strict';
+var path = require('path');
+var binaryExtensions = require('binary-extensions');
+var exts = Object.create(null);
+
+binaryExtensions.forEach(function (el) {
+	exts[el] = true;
+});
+
+module.exports = function (filepath) {
+	return path.extname(filepath).slice(1).toLowerCase() in exts;
+};