Fix teardown bug found in books.

Change-Id: I9ac449b644108148b331e0c552f289bf80a07f7e
diff --git a/rs.spec b/rs.spec
index 021ff92..a5810d4 100644
--- a/rs.spec
+++ b/rs.spec
@@ -47,7 +47,7 @@
 	param int32_t priority
 	}
 
-ContextDestroy {
+ContextDestroyWorker {
 }
 
 AssignName {