[bug] curveadm status display error

[h0hmj]

% curveadm --version
CurveAdm v0.3.0

% curveadm status
Get Service Status: [OK]

cluster name      : c
cluster kind      : curvefs
cluster mds addr  : 127.0.0.1:6700,127.0.0.1:6701,127.0.0.1:6702
cluster mds leader: <no leader>

Id            Role        Host  Replicas  Container Id  Status
--            ----        ----  --------  ------------  ------
7f8e89da97b6  etcd        corp  1/1       4c5a79691acc  Up 14 minutes
76db5d8056a4  etcd        corp  1/1       bd0365c53d1c  Up 14 minutes
abffa560c06a  etcd        corp  1/1       920983534c6a  Up 14 minutes
f26677da7e47  mds         corp  1/1       e7bb8207eb1f  Up 14 minutes
f8d44e0f155b  mds         corp  1/1       ef3baad7e3cc  Up 14 minutes
b802c35fbc1e  mds         corp  1/1       1e815031b504  Up 14 minutes
63d3466b98f1  metaserver  corp  1/1       18e2ebe51d61  Up 14 minutes
bef9b863ef5d  metaserver  corp  1/1       9e07d3a79536  Up 14 minutes
c851324a95e8  metaserver  corp  1/1       a00546f2b293  Up 14 minutes

% curl http://127.0.0.1:6700/vars |grep curvefs_mds_status
curvefs_mds_status : "leader"

single node deploy curvefs.

curveadm status shows "no leader", but there is a leader.