[ostree] Fix crasher when running 'ostree cat'

[Stefan Walter <stefw src gnome org>]

commit 860cc111604617c5bc4923d183977fea1320e91b
Author: Stef Walter <stefw redhat com>
Date:   Wed Aug 14 09:01:18 2013 +0200

    Fix crasher when running 'ostree cat'
    
    Cause was a buffer read overrun.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=705964

 src/ostree/ot-builtin-cat.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/ostree/ot-builtin-cat.c b/src/ostree/ot-builtin-cat.c
index c3f113f..eac3a28 100644
--- a/src/ostree/ot-builtin-cat.c
+++ b/src/ostree/ot-builtin-cat.c
@@ -29,6 +29,7 @@
 #include <gio/gunixoutputstream.h>
 
 static GOptionEntry options[] = {
+  { NULL },
 };
 
 static gboolean