Make further use of default parameters.

--HG--
extra : rebase_source : ab666bce7ed7e47c8f1e2bc4145f553da990d319

common/content/hints.js

@@ -12,11 +12,9 @@
 var HintSession = Class("HintSession", CommandMode, {
     get extendedMode() modes.HINTS,
 
-    init: function init(mode, opts) {
+    init: function init(mode, opts = {}) {
         init.supercall(this);
 
-        opts = opts || {};
-
         if (!opts.window)
             opts.window = modes.getStack(0).params.window;
 
@@ -1056,11 +1054,9 @@ var Hints = Module("hints", {
         return null;
     }, //}}}
 
-    open: function open(mode, opts) {
+    open: function open(mode, opts = {}) {
         this._extendedhintCount = opts.count;
 
-        opts = opts || {};
-
         mappings.pushCommand();
         commandline.input(["Normal", mode], null, {
             autocomplete: false,