#351: use docker logs not tail

cmd/dotmesh-server/require_zfs.sh

@@ -240,7 +240,7 @@ done
 # we need the logs from the inner server to be sent to the outer container
 # such that k8s will pick them up from the pod - the inner container is not
 # a pod but a container run from /var/run/docker.sock
-(while true; do docker tail -f dotmesh-server-inner || true; sleep 1; done) &
+(while true; do docker logs -f dotmesh-server-inner || true; sleep 1; done) &
 
 # In order of the -v options below:
 # 1. Mount the docker socket so that we can stop and start containers around