rules: default rev to 0 for rules without a rev

Comparisons between none types in Python 2 were allowed, Python 3
throws an exception here causing rules without a rev to break
suricata-update.

diff --git a/suricata/update/rule.py b/suricata/update/rule.py
index 8444e90f832dd9e2fed670c97acf8e864d0a0aac..91df0c802dbd2ad91b7625ba2f6e4034dbc04987 100644 (file)
--- a/suricata/update/rule.py
+++ b/suricata/update/rule.py
@@ -97,7 +97,7 @@ class Rule(dict):
         self["group"] = group
         self["gid"] = 1
         self["sid"] = None
-        self["rev"] = None
+        self["rev"] = 0
         self["msg"] = None
         self["flowbits"] = []
         self["metadata"] = []