Fix: memory leak connected to lua 5.0 vaarargs

ElvUI/Libraries/oUF/elements/power.lua

@@ -202,7 +202,7 @@ local function Update(self, event, unit)
 	end
 end
 
-local function Path(self, ...)
+local function Path(self, event, a, b, c, d, e)
 	--[[ Override: Power.Override(self, event, unit, ...)
 	Used to completely override the internal update function.
 
@@ -211,7 +211,7 @@ local function Path(self, ...)
 	* unit  - the unit accompanying the event (string)
 	* ...   - the arguments accompanying the event
 	--]]
-	return (self.Power.Override or Update) (self, unpack(arg))
+	return (self.Power.Override or Update) (self, event, a, b, c, d, e)
 end
 
 local function ForceUpdate(element)