update lua builtins

lib/rouge/lexers/lua/builtins.rb

@@ -1,10 +1,11 @@
+# -*- coding: utf-8 -*- #
 # automatically generated by `rake builtins:lua`
 module Rouge
   module Lexers
     class Lua
       def self.builtins
         @builtins ||= {}.tap do |b|
-          b["basic"] = Set.new %w(_G _VERSION assert collectgarbage dofile error getmetatable ipairs loadfile load next pairs pcall print rawequal rawget rawlen rawset select setmetatable tonumber tostring type xpcall file:close file:flush file:lines file:read file:seek file:setvbuf file:write)
+          b["basic"] = Set.new %w(_G _VERSION assert collectgarbage dofile error getmetatable ipairs load loadfile next pairs pcall print rawequal rawget rawlen rawset select setmetatable tonumber tostring type xpcall file:close file:flush file:lines file:read file:seek file:setvbuf file:write)
           b["modules"] = Set.new %w(require package.config package.cpath package.loaded package.loadlib package.path package.preload package.searchers package.searchpath)
           b["bit32"] = Set.new %w(bit32.arshift bit32.band bit32.bnot bit32.bor bit32.btest bit32.bxor bit32.extract bit32.lrotate bit32.lshift bit32.replace bit32.rrotate bit32.rshift)
           b["coroutine"] = Set.new %w(coroutine.create coroutine.resume coroutine.running coroutine.status coroutine.wrap coroutine.yield)