anchor.diff:  	PowerShell -Command "(New-Object Net.WebClient).DownloadFile('https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/user.js', 'user.js.new')"
   ) >nul 2>&1
   IF EXIST user.js.new (
  +	IF DEFINED _esr (
  +		CALL :message "Activating ESR section..."
  +		CALL :esr user.js.new
  +	)
   	IF DEFINED _multi (
   		FORFILES /P user.js-overrides /M *.js >nul 2>&1
   		IF NOT ERRORLEVEL 1 (
  
positive.code: IF /I "%~1"=="-merge" (SET _merge=1)
  IF /I "%~1"=="-updatebatch" (SET _updateb=1)
  IF /I "%~1"=="-singlebackup" (SET _singlebackup=1)
  SHIFT
  GOTO parse
  :endparse
  
negative.code: 
  REM ## ghacks-user.js updater for Windows
  REM ## author: @claustromaniac
  REM ## version: 4.8
  REM ## instructions: https://github.com/ghacksuserjs/ghacks-user.js/wiki/3.3-Updater-Scripts
  
  SET v=4.8
  
  VERIFY ON
  CD /D "%~dp0"
  