boto/boto — pull request #851 by NeilW (2012-07-04 16:01:27+00:00)
Title: utils.py: Add guard for blank responses to get-instance-metadata

Blank responses or '404' returns from retry_url - all of which return an empty string cause an 'Index out of range' Exception in get-instance-metadata causing the entire tree to fail.

Just need to add a guard before the val[0] check.