Restore devnull initial sid context.
diff --git a/initial_sid_contexts b/initial_sid_contexts
index a8d2c19..9819051 100644
--- a/initial_sid_contexts
+++ b/initial_sid_contexts
@@ -24,4 +24,4 @@
 sid kmod u:object_r:unlabeled:s0
 sid policy u:object_r:unlabeled:s0
 sid scmp_packet u:object_r:unlabeled:s0
-
+sid devnull u:object_r:null_device:s0