From 9c952eec3ec8ae7a9ea37b3c7341ed2d4f6f4f6e Mon Sep 17 00:00:00 2001
From: Isaac Hollander McCreery <ihmccreery@google.com>
Date: Thu, 8 Oct 2015 15:16:12 -0700
Subject: [PATCH] Add usage to mark-new-version

---
 build/mark-new-version.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/build/mark-new-version.sh b/build/mark-new-version.sh
index 7bc473adeaa..34db8fdea07 100755
--- a/build/mark-new-version.sh
+++ b/build/mark-new-version.sh
@@ -20,6 +20,11 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
+if [ "$#" -ne 1 ]; then
+  echo "Usage: ${0} <version>"
+  exit 1
+fi
+
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
 
 NEW_VERSION=${1-}