Also try with set -u

diff --git a/modules/geodns/files/common/recvconf b/modules/geodns/files/common/recvconf
index 4096d65..e3acbd3 100755 (executable)
--- a/modules/geodns/files/common/recvconf
+++ b/modules/geodns/files/common/recvconf
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 set -e
+set -u
 
 ## Copyright (c) 2005 David B. Harris <dbharris@eelf.ddts.net>
 ## Copyright (c) 2005 Peter Palfrader <peter@palfrader.org>