Fixed the lua header generator script to output the correct year in the copyright text

src/scripts/audio.lua.h

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2006-2012 LOVE Development Team
+ * Copyright (c) 2006-2013 LOVE Development Team
  * 
  * This software is provided 'as-is', without any express or implied
  * warranty.  In no event will the authors be held liable for any damages

src/scripts/auto.lua

@@ -7,7 +7,7 @@
 local max_width = 18
 local pattern = [[
 /**
- * Copyright (c) 2006-2012 LOVE Development Team
+ * Copyright (c) 2006-2013 LOVE Development Team
  * 
  * This software is provided 'as-is', without any express or implied
  * warranty.  In no event will the authors be held liable for any damages

src/scripts/boot.lua.h

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2006-2012 LOVE Development Team
+ * Copyright (c) 2006-2013 LOVE Development Team
  * 
  * This software is provided 'as-is', without any express or implied
  * warranty.  In no event will the authors be held liable for any damages

src/scripts/graphics.lua.h

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2006-2012 LOVE Development Team
+ * Copyright (c) 2006-2013 LOVE Development Team
  * 
  * This software is provided 'as-is', without any express or implied
  * warranty.  In no event will the authors be held liable for any damages