During development I tend to do:
make -C pkg/foo tag HASH=dev ORG=ijc
and I expect to get an image `ijc/foo:dev` and not `ijc/foo:dev-amd64`. In
general I think if the HASH has been explicitly provided the build should
just honour that.
To compensate and avoid mistaken pushes adjust the check for dirtiness to also
insist on a non-empty suffix.
Signed-off-by: Ian Campbell <ijc@docker.com>
0469901778