[bug] ceph osd 状态校验失败时，输出信息含义冲突

```
# eayunstack doctor cls -a
...
[ INFO  ] (controller) (node-8.eayun.com): =====> Checking ceph osd status
[ ERROR ] (controller) (node-8.eayun.com): Can not get ceph osd status !
[ INFO  ] (controller) (node-8.eayun.com): Ceph osd status check successfully !
...
```

以上输出信息中第二条与第三条含义冲突
