[Minor] Silence warning

diff --git a/lualib/lua_squeeze_rules.lua b/lualib/lua_squeeze_rules.lua
index 5db715fb1915f0eca62acc4b7edc397a32277455..d351c5e20e8e16a4c4697e51cd2dedbb870c5a70 100644 (file)
--- a/lualib/lua_squeeze_rules.lua
+++ b/lualib/lua_squeeze_rules.lua
@@ -139,7 +139,7 @@ end
 
 exports.squeeze_init = function()
   -- Do topological sorting
-  for s,v in pairs(squeezed_symbols) do
+  for _,v in pairs(squeezed_symbols) do
     local function visit(node, order)
 
       if order > node.order then