tree afc066c0af52c1f2125b63f8ea6216b881efd27f
parent 5606a97282d5fd108e73791cf4d58185f8882b47
author Matthew Treinish <mtreinish@kortar.org> 1401213002 -0400
committer Matthew Treinish <mtreinish@kortar.org> 1401213002 -0400

Remove default from image_ref options

This commit removes the weird default values for the image_ref option.
The IMAGE_ID defaults were probably a hold away from when they were
set in env from an early version of tempest. This sets no default and
lists them as required opts in the help field.

Change-Id: Iaeff5ff2278b0076306ed2cbfe592c06cfbbe316