Merge pull request #8368 from vieux/fix_docker_rm

docker rm <unknown>

daemon/delete.go

@@ -20,7 +20,7 @@ func (daemon *Daemon) ContainerRm(job *engine.Job) engine.Status {
 	container := daemon.Get(name)
 
 	if container == nil {
-		job.Errorf("No such container: %s", name)
+		return job.Errorf("No such container: %s", name)
 	}
 
 	if removeLink {