From 30342e219e2005db90660c9e2580f9b4a0ca6bd9 Mon Sep 17 00:00:00 2001
From: Anthony Johnson <aj@ohess.org>
Date: Wed, 4 Apr 2018 16:11:33 -0600
Subject: [PATCH] Make invoke prepare since optional argument

---
 tasks.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tasks.py b/tasks.py
index b4eef5c5eaa..7114f7beabf 100644
--- a/tasks.py
+++ b/tasks.py
@@ -12,7 +12,7 @@
 
 
 @task
-def prepare(ctx, version, since):
+def prepare(ctx, version, since=None):
     """
     Prepare the next release version by updating files.