"Container's image" term is rather ambiguous: it can be both a name and an ID.
Looking at the sources[1], it's actually an image ID, so bring some clarity.
[1]: https://github.com/moby/moby/blob/a6a47d1a4944799ffbe3657d4dae68e0829a0dc6/daemon/inspect.go#L170
Signed-off-by: Nikolay Edigaryev <edigaryev@gmail.com>
(cherry picked from commit c44fb423778e3d40cbc9e309d253067a5b8d4a96)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>