--- a/hglib.lua	Sat Sep 10 11:05:15 2016 +0800
+++ b/hglib.lua	Sat Sep 10 15:14:24 2016 +0800
@@ -1,6 +1,6 @@
 local lpc = require('lpc')
 
-local unpack = table.unpack or unpack -- luacheck: ignore undefined variable unpack
+local unpack = table.unpack or unpack -- luacheck: read globals unpack
 
 local sizes = { i4 = 4, u4 = 4, c = 1 }