fixup! arc.lua: fix signature of ARC-Seal header

diff --git a/src/plugins/lua/arc.lua b/src/plugins/lua/arc.lua
index 4fdd4fe9fa6504b020203b3a32dfa03801e4b2b5..697c38b48a82b1325ea36437346085b6adff9f81 100644 (file)
--- a/src/plugins/lua/arc.lua
+++ b/src/plugins/lua/arc.lua
@@ -530,6 +530,8 @@ local function arc_sign_seal(task, params, header)
   local cur_idx = 1
   if arc_seals then
     cur_idx = #arc_seals + 1
+    -- We use the cached version per each ARC-* header field individually, already sorted by instance
+    -- value in ascending order
     for i = 1, #arc_seals, 1 do
       if arc_auth_results[i] then
         local s = dkim_canonicalize('ARC-Authentication-Results',