From 13a4fe85d37476bc34e5e1afac6ead190132321e Mon Sep 17 00:00:00 2001
From: Roman Zeyde <roman.zeyde@gmail.com>
Date: Mon, 15 Jun 2015 09:14:26 +0300
Subject: [PATCH] agent: add default for labels

---
 agent.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/agent.py b/agent.py
index 5213c6e..6fcf47e 100755
--- a/agent.py
+++ b/agent.py
@@ -92,7 +92,8 @@ def serve(key_files, command, signer, sock_path=None):
 def main():
     fmt = '%(asctime)s %(levelname)-12s %(message)-100s [%(filename)s]'
     p = argparse.ArgumentParser()
-    p.add_argument('-k', '--key-label', dest='labels', action='append')
+    p.add_argument('-k', '--key-label',
+                   metavar='LABEL', dest='labels', action='append', default=[])
     p.add_argument('-v', '--verbose', action='count', default=0)
     p.add_argument('command', type=str, nargs='*')
     args = p.parse_args()