Include candidate IP in log message.
I hit this log message when doing some IPv6 testing.  I found that it
would have been helpful to know the IP address it was checking.
There's a verbose message a few lines later that would print it, but
it won't be hit in this error scenario.
@@ -64,7 +64,7 @@ func runRunCmd(cmd *cobra.Command, args []string) error {
for _, cand := range ips {
found, err := reverseLookupSelf("etcd-server-ssl", "tcp", runOpts.discoverySRV, cand)
if err != nil {
- glog.Errorf("error looking up self: %v", err)
+ glog.Errorf("error looking up self for candidate IP %s: %v", cand, err)
continue
}
if found != "" {
