net.httpserver: Changed an unnecessary global access.

diff --git a/net/httpserver.lua b/net/httpserver.lua
index 4be62ced61ab64110ebb374fe87e4a1d053a862f..6fd9b65eb63c008cb175612c7299a63a917a15a5 100644 (file)
--- a/net/httpserver.lua
+++ b/net/httpserver.lua
@@ -20,7 +20,7 @@ local t_insert, t_concat = table.insert, table.concat;
 local s_match, s_gmatch = string.match, string.gmatch;
 local tonumber, tostring, pairs, ipairs, type = tonumber, tostring, pairs, ipairs, type;
 
-local urlencode = function (s) return s and (s:gsub("%W", function (c) return string.format("%%%02x", c:byte()); end)); end
+local urlencode = function (s) return s and (s:gsub("%W", function (c) return ("%%%02x"):format(c:byte()); end)); end
 
 local log = require "util.logger".init("httpserver");