Declare e properly in mediaFeature

Author: NDMarcel

lib/less/parser.js

@@ -1048,7 +1048,7 @@ less.Parser = function Parser(env) {
             },
 
             mediaFeature: function () {
-                var nodes = [];
+                var e, nodes = [];
 
                 do {
                     if (e = $(this.entities.keyword)) {
@@ -1074,7 +1074,7 @@ less.Parser = function Parser(env) {
             },
 
             mediaFeatures: function () {
-                var features = [];
+                var e, features = [];
 
                 do {
                   if (e = $(this.mediaFeature)) {