BUGFIX: taller keyboard shortcuts modal to prevent then scrollbar

app/assets/javascripts/discourse/controllers/keyboard_shortcuts_help_controller.js

@@ -8,5 +8,10 @@
   @module Discourse
 **/
 Discourse.KeyboardShortcutsHelpController = Discourse.Controller.extend(Discourse.ModalFunctionality, {
-  needs: ['modal']
+  needs: ['modal'],
+
+  onShow: function() {
+    this.set('controllers.modal.modalClass', 'keyboard-shortcuts-modal');
+  }
+
 });

app/assets/stylesheets/common/components/keyboard_shortcuts.css.scss

@@ -13,6 +13,10 @@
   background-color: inherit;
 }
 
+.keyboard-shortcuts-modal .modal-body {
+  max-height: 500px;
+}
+
 #keyboard-shortcuts-help {
   ul {
     list-style: none;