rename opn to open. fixes vercel#824

Author: igorklopov

dictionary/opn.js renamed to dictionary/open.js

@@ -0,0 +1,6 @@
+'use strict';
+
+var open = require('open');
+open('package.json').then(() => {
+  console.log('ok');
+});

test/test-79-npm/open/open.js

@@ -9,6 +9,6 @@ module.exports = function (stamp, flags) {
   }
 
   return {
-    deployFilesFrom: [ 'opn' ]
+    deployFilesFrom: [ 'open' ]
   };
 };