[Minor] Allow `options.upstreams` to be used as well

diff --git a/lualib/lua_cfg_transform.lua b/lualib/lua_cfg_transform.lua
index d6243ade1e1769ddac0a0e536ca4c7d37290415b..02d8526e5bfafe9f1dc66d505033a140a3829409 100644 (file)
--- a/lualib/lua_cfg_transform.lua
+++ b/lualib/lua_cfg_transform.lua
@@ -630,5 +630,10 @@ return function(cfg)
     cfg.emails = {}
   end
 
+  -- Common misprint options.upstreams -> options.upstream
+  if type(cfg.options) == 'table' and type(cfg.options.upstreams) == 'table' and not cfg.options.upstream then
+    cfg.options.upstream = cfg.options.upstreams
+  end
+
   return ret, cfg
 end