Brandon Philips ab90369f9e etcdserver: use hex for cluster and machine id
Continue using hex everywhere. Including here.

TODO: cleanup the printing of the structs which currently have decimal
to/from:

`{Type:MsgAppResp To:9973738105406047488 From:17050684879817348455 T...`
2014-10-22 16:24:50 -07:00
..