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-rw-r--r--cliff/app.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/cliff/app.py b/cliff/app.py
index 55420b5..2b60d34 100644
--- a/cliff/app.py
+++ b/cliff/app.py
@@ -70,7 +70,7 @@ class App(object):
parser.add_argument(
'--version',
action='version',
- version='%(prog)s {}'.format(version),
+ version='%(prog)s {0}'.format(version),
)
parser.add_argument(
'-v', '--verbose',