etcd/pkg/transport
Yicheng Qin 57e88465bf pkg/transport: print ClientCertAuth in TLSInfo.String()
It is good to print it in debug output:

```
21:56:12 etcd1 | 2015-08-25 21:56:12.162406 I | etcdmain: peerTLS: cert
= certs/etcd1.pem, key = certs/etcd1-key.pem, ca = , trusted-ca =
certs/ca.pem, client-cert-auth = true
```
2015-08-25 21:53:52 -07:00
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