dotcloud/docker — pull request #4430 by vbatts (2014-03-03 20:40:54+00:00)
Title: Adding -orphans flag to `docker images`

To see a list of the heads (leaves) of images that are not tagged.
This is to support the workflow of pruning orphans with a simplified
example like: docker rmi $(docker images -q -oprphans)

Docker-DCO-1.1-Signed-off-by: Vincent Batts (github: vbatts)