[Minor] Format floating point number

diff --git a/src/plugins/lua/ratelimit.lua b/src/plugins/lua/ratelimit.lua
index 341f9e6585dc06590edf16242948543e3ba1f1ab..dd999d7ba9bcf374b3adcd9eb46db3bb0df94674 100644 (file)
--- a/src/plugins/lua/ratelimit.lua
+++ b/src/plugins/lua/ratelimit.lua
@@ -287,7 +287,7 @@ local function check_limits(task, args)
 
             if mult > 0.5 then
               task:insert_result(ratelimit_symbol, mult,
-                rtype .. ':' .. tostring(mult))
+                rtype .. ':' .. string.format('%.2f', mult))
             end
           else
             if bucket > threshold then