ansible/ansible — pull request #8226 by jyoungs (2014-07-21 21:23:42+00:00)
Title: Filter empty "volumes" from the list (EC2 module)

I want Volumes to be dynamic- yet allow for the default (whatever is baked into the AMI). So Sometimes I send:
`Volumes: None`

This filters None, whereas before this change if fails on "Device name must be set..."