Using node default params

Author: agnivade

lib/tldr.js

@@ -64,7 +64,7 @@ exports.render = (file) => {
     }
     // Getting the shortindex first to populate the shortindex var
     index.getShortIndex(() => {
-      renderContent(content, {});
+      renderContent(content);
     });
   });
 };
@@ -123,9 +123,7 @@ function printPages(pages, singleColumn) {
   console.log('\n' + pages.join(delimiter));
 }
 
-function printBestPage(command, options) {
-  // TODO: replace with default parameter if Node v4 support dropped.
-  options = options || {};
+function printBestPage(command, options={}) {
   /* eslint-disable */ // To allow not checking for err
   // Trying to get the page from cache first
   cache.getPage(command, (err, content) => {