(minor) tidying up

lib/less/tree.js

@@ -1,13 +1,17 @@
-require('./tree').find = function (obj, fun) {
+(function (tree) {
+
+tree.find = function (obj, fun) {
     for (var i = 0, r; i < obj.length; i++) {
         if (r = fun.call(obj, obj[i])) { return r }
     }
     return null;
 };
-require('./tree').jsify = function (obj) {
+tree.jsify = function (obj) {
     if (Array.isArray(obj.value) && (obj.value.length > 1)) {
         return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']';
     } else {
         return obj.toCSS(false);
     }
 };
+
+})(require('./tree'));

lib/less/tree/ruleset.js

@@ -121,7 +121,7 @@ tree.Ruleset.prototype = {
             if (context.length === 0) {
                 paths = this.selectors.map(function (s) { return [s] });
             } else {
-                this.joinSelectors( paths, context, this.selectors );
+                this.joinSelectors(paths, context, this.selectors);
             }
         }