util.ip: remove unused one-letter loop variables [luacheck]

diff --git a/util/ip.lua b/util/ip.lua
index ec3b4d7e56ba4c8342d11e5af00a044d25fe418e..1f32d1b50e8d532697d05e9bcfca5a84dd7a05b8 100644 (file)
--- a/util/ip.lua
+++ b/util/ip.lua
@@ -51,11 +51,11 @@ local function toBits(ip)
        if not ip:match(":$") then fields[#fields] = nil; end
        for i, field in ipairs(fields) do
                if field:len() == 0 and i ~= 1 and i ~= #fields then
-                       for i = 1, 16 * (9 - #fields) do
+                       for _ = 1, 16 * (9 - #fields) do
                                result = result .. "0";
                        end
                else
-                       for i = 1, 4 - field:len() do
+                       for _ = 1, 4 - field:len() do
                                result = result .. "0000";
                        end
                        for i = 1, field:len() do