Fix delete of container.
diff --git a/exercise.sh b/exercise.sh
index c737bcc..c49f124 100755
--- a/exercise.sh
+++ b/exercise.sh
@@ -209,4 +209,4 @@
 
 # And we may want to delete them now that we have tested that
 # everything works.
-swift --auth-version 2 -A http://${HOST_IP}:5000/v2.0 -U admin -K $ADMIN_PASSWORD delete --all testcontainer
+swift --auth-version 2 -A http://${HOST_IP}:5000/v2.0 -U admin -K $ADMIN_PASSWORD delete testcontainer