Avoid borking the luacontroller if the code uses square brackets. When the...

Avoid borking the luacontroller if the code uses square brackets. When the next stable MT is released, uncomment the formspec_escape call to take advantave of formspec escaping.

mesecons_luacontroller/init.lua

@@ -284,9 +284,13 @@ end
 local reset_meta = function(pos, code, errmsg)
 	local meta = minetest.env:get_meta(pos)
 	code = code or "";
+	code = string.gsub(code, "%[", "(") -- would otherwise
+	code = string.gsub(code, "%]", ")") -- corrupt formspec
 	errmsg = errmsg or "";
 	errmsg = string.gsub(errmsg, "%[", "(") -- would otherwise
 	errmsg = string.gsub(errmsg, "%]", ")") -- corrupt formspec
+	--code = minetest.formspec_escape(code or "")
+	--errmsg = minetest.formspec_escape(errmsg or "")
 	meta:set_string("code", code)
 	meta:set_string("formspec", "size[10,8]"..
 		"background[-0.2,-0.25;10.4,8.75;jeija_luac_background.png]"..