As it is, Glance correctly returns a 403 when one attempts to
deactivate (reactivate) an image that is not in active (deactivated)
status. A typo in the current spec incorrectly states that a 400
is returned in this situation. This patch corrects the typo.
No code fix is required.
In order to provide administrators a way to temporarily prevent
the download and usage of a potentially harmful image, this
spec proposes the addition of operations to Glance supporting
the concept of a 'deactivated' image.
Addresses: bp deactivate-image