Replace 'laststatus' with a 'guioptions' flag.

pentadactyl/NEWS

@@ -49,6 +49,8 @@
     * The concept of completion contexts is now exposed to the user
       (see :h :contexts), allowing for powerful and fine-grained
       completion system customization.
+    * IMPORTANT: 'laststatus' has been replaced with the ‘s’ flag in
+      'guioptions'
     * IMPORTANT: Command script files now use the *.penta file extension.
     * IMPORTANT: Plugins are now loaded from the 'plugins/'
       directory in 'runtimepath' rather than 'plugin/'.

pentadactyl/content/config.js

@@ -31,7 +31,7 @@ const Config = Module("config", ConfigBase, {
 
     defaults: {
         complete: "slf",
-        guioptions: "rbC",
+        guioptions: "bCrs",
         showtabline: 2,
         titlestring: "Pentadactyl"
     },