certmanager: Localize tonumber

diff --git a/core/certmanager.lua b/core/certmanager.lua
index 978a9efcfd4ba0209b8217cc97dcc5095fc336a9..a4c9d891cbc2424003bdfb07681a5b8d1cb1a08b 100644 (file)
--- a/core/certmanager.lua
+++ b/core/certmanager.lua
@@ -25,7 +25,7 @@ local ssl_newcontext = ssl.newcontext;
 local new_config = require"util.sslconfig".new;
 local stat = require "lfs".attributes;
 
-local tostring = tostring;
+local tonumber, tostring = tonumber, tostring;
 local pairs = pairs;
 local type = type;
 local io_open = io.open;