lists: fix wrong value used in loop

lists/foris-utils.m4

 
 local function foris_plugin(...)
-	for plugin in pairs({...}) do
+	for _, plugin in pairs({...}) do
 		fplugin = "foris-" .. plugin .. "-plugin"
 		Install(fplugin, { priority = 40 })
 		if for_l10n then

lists/luci-utils.m4

 
 local function luci_app(...)
-	for app in pairs({...}) do
+	for _, app in pairs({...}) do
 		Install("luci-app-" .. app, { priority = 40 })
 		if for_l10n then
 			Install("luci-i18n-" .. app .. "-en", { optional = true })
@@ -10,7 +10,7 @@ local function luci_app(...)
 end
 
 local function luci_proto(...)
-	for proto in pairs({...}) do
+	for _, proto in pairs({...}) do
 		Install("luci-proto-" .. proto, { priority = 40 })
 	end
 end