update

node_modules/portscanner/lib/promisify.js

@@ -0,0 +1,19 @@
+module.exports = promisify
+
+function promisify (fn, args) {
+  if (typeof Promise === 'undefined') {
+    throw new Error('Please run in a Promise supported environment or provide a callback')
+  }
+  return new Promise(function (resolve, reject) {
+    args = [].slice.call(args).concat([callback])
+    fn.apply(null, args)
+
+    function callback (error, port) {
+      if (error || port === false) {
+        reject(error || new Error('No open port found'))
+      } else {
+        resolve(port)
+      }
+    }
+  })
+}