Fix global variable leak.

diff --git a/OvaleActionBar.lua b/OvaleActionBar.lua
index cca93c8..9cf2569 100644
--- a/OvaleActionBar.lua
+++ b/OvaleActionBar.lua
@@ -20,10 +20,10 @@ local API_GetActionText = GetActionText
 local API_GetBindingKey = GetBindingKey

 --key: spell name / value: action icon id
-self_actionSpell = {}
-self_actionMacro = {}
-self_actionItem = {}
-self_keybind = {}
+local self_actionSpell = {}
+local self_actionMacro = {}
+local self_actionItem = {}
+local self_keybind = {}
 --</private-static-properties>

 --<public-static-methods>
diff --git a/OvaleGUID.lua b/OvaleGUID.lua
index 022e413..53a17e7 100644
--- a/OvaleGUID.lua
+++ b/OvaleGUID.lua
@@ -21,10 +21,10 @@ local API_GetNumGroupMembers = GetNumGroupMembers
 local API_UnitGUID = UnitGUID
 local API_UnitName = UnitName

-self_unitId = {}
-self_guid = {}
-self_nameToGUID = {}
-self_nameToUnit = {}
+local self_unitId = {}
+local self_guid = {}
+local self_nameToGUID = {}
+local self_nameToUnit = {}
 --</private-static-properties>

 --<public-static-methods>