destroy cluster command on Whirr in 5 minutes page does not work...

The whirr-in-5-minutes page, towards the bottom reads:

You can shut down the cluster with
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This will cause whirr to search for the default ssh key pair, not the key pair created with the previous instructions: "ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa_whirr"

The corrected document should read:

bin/whirr destroy-cluster --config recipes/zookeeper-ec2.properties --private-key-file ~/.ssh/id_rsa_whirr