Fix global variable leakage.

diff --git a/OvaleRunes.lua b/OvaleRunes.lua
index 3ecbac4..c59b11a 100644
--- a/OvaleRunes.lua
+++ b/OvaleRunes.lua
@@ -468,8 +468,8 @@ end
 statePrototype.GetRunesCooldown = nil
 do
 	-- The remaining count requirements, indexed by rune type.
-	count = {}
-	usedRune = {}
+	local count = {}
+	local usedRune = {}

 	statePrototype.GetRunesCooldown = function(state, blood, unholy, frost, death, atTime)
 		-- Default to checking runes at the end of the current spellcast in the