etcd/discovery
Brandon Philips e71dc2e565 discovery: fixup logline
before:

```
discovery: duringcluster status checkconnection tohttps://discovery.etcd.iotimed out, retrying in2s
```

after:

```
discovery: cluster status check: connection to https://discovery.etcd.io timed out, retrying in 2s
```
2015-06-19 13:19:09 -04:00
..
2015-06-19 13:19:09 -04:00
2015-04-09 07:07:27 -07:00
2015-06-11 14:22:14 -07:00