修正合并错误问题

lib/index.js

@@ -300,6 +300,7 @@ FilterXSS.prototype.process = function (html) {
   var tagStart = false;
   var quoteStart = false;
   var currentPos = 0;
+  var len = 0;
 
   // 逐个分析字符
   for (currentPos = 0, len = html.length; currentPos < len; currentPos++) {
@@ -377,12 +378,12 @@ if (typeof window !== 'undefined') {
   }
   if(!Array.forEach){
     Array.prototype.forEach = function(fn){
-       for(var i=0;i<this.length;i++) fn(this[i],i,this); 
+       for(var i=0;i<this.length;i++) fn(this[i],i,this);
     };
   }
   if(!String.trim){
     String.prototype.trim = function(){
-        return this.replace(/(^\s*)|(\s*$)/g,""); 
+        return this.replace(/(^\s*)|(\s*$)/g,"");
     };
   }
   window.filterXSS = module.exports;