Revert "cleanup"

This reverts commit 00de485c0b.

ElvUI_Config/Libraries/AceConfig-3.0/AceConfigDialog-3.0/AceConfigDialog-3.0.lua

@@ -1926,7 +1926,7 @@ function AceConfigDialog:AddToBlizOptions(appName, name, parent, ...)
 	local BlizOptions = AceConfigDialog.BlizOptions
 
 	local key = appName
-	local l = arg.n
+	local l = tgetn(arg)
 	for n = 1, l do
 		key = key .. "\001" .. arg[n]
 	end

ElvUI_Config/Libraries/AceConfig-3.0/AceConfigRegistry-3.0/AceConfigRegistry-3.0.lua

@@ -23,7 +23,7 @@ if not AceConfigRegistry.callbacks then
 end
 
 -- Lua APIs
-local tinsert, tconcat = table.insert, table.concat
+local tinsert, tconcat, tgetn = table.insert, table.concat, table.getn
 local strfind = string.find
 local type, tostring, pairs = type, tostring, pairs
 local error, assert = error, assert
@@ -41,7 +41,7 @@ AceConfigRegistry.validated = {
 }
 
 local function err(msg, errlvl, ...)
-	local l = arg.n
+	local l = tgetn(arg)
 	local i,j = 1,l
 	while i < j do
 		arg[i], arg[j] = arg[j], arg[i]

ElvUI_Config/Libraries/AceGUI-3.0/widgets/AceGUIContainer-TreeGroup.lua

@@ -168,7 +168,7 @@ local function FirstFrameUpdate()
 end
 
 local function BuildUniqueValue(...)
-	local n = arg.n
+	local n = tgetn(arg)
 	if n == 1 then
 		return arg[1]
 	else