From 5e7936123c29f466cca5c789f475b1f17fe44379 Mon Sep 17 00:00:00 2001
From: Steve Pulec <spulec@gmail.com>
Date: Mon, 30 Dec 2013 13:32:07 -0500
Subject: [PATCH] Add comments for optional argparse positional argument

---
 moto/server.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/moto/server.py b/moto/server.py
index ca46b6b54..c1ecef074 100644
--- a/moto/server.py
+++ b/moto/server.py
@@ -85,7 +85,7 @@ def main(argv=sys.argv[1:]):
     parser.add_argument(
         "service",
         type=str,
-        nargs='?',
+        nargs='?',  # http://stackoverflow.com/a/4480202/731592
         default=None)
     parser.add_argument(
         '-H', '--host', type=str,