[orca] Restore incorrectly removed line from previous commit

[Joanmarie Diggs <joanied src gnome org>]

commit 822efe206b18c8b391000c3630ac231e9a67373b
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Thu Sep 13 08:01:32 2018 -0400

    Restore incorrectly removed line from previous commit

 src/orca/event_manager.py | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/orca/event_manager.py b/src/orca/event_manager.py
index 5ef86a8ee..096573c65 100644
--- a/src/orca/event_manager.py
+++ b/src/orca/event_manager.py
@@ -365,6 +365,7 @@ class EventManager:
         if not self._isNoFocus():
             return False
 
+        defaultScript = _scriptManager.getDefaultScript()
         _scriptManager.setActiveScript(defaultScript, 'No focus')
         return False