Issue 3709 - Take care to normalise the incoming filters

abp2blocklist.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
 let readline = require("readline");
 let Filter = require("filterClasses").Filter;
 let ContentBlockerList = require("./lib/abp2blocklist.js").ContentBlockerList;
 
 var rl = readline.createInterface({input: process.stdin, terminal: false});
 var blockerList = new ContentBlockerList();
 
 rl.on("line", line =>
 {
   if (/^\s*[^\[\s]/.test(line))
-    blockerList.addFilter(Filter.fromText(line));
+    blockerList.addFilter(Filter.fromText(Filter.normalize(line)));
 });
 
 rl.on("close", () =>
 {
   console.log(JSON.stringify(blockerList.generateRules(),
                              null, "\t"));
 });