Fix the log statement in FastLeaderElection

 LOG.debug(
                "Sending Notification: {} (n.leader),  0x{} (n.peerEpoch), 0x{} (n.zxid), 0x{} (n.round), {} (recipient),"+underlined text+
                    + " {} (myid) ",
                proposedLeader,
                Long.toHexString(proposedZxid),
                Long.toHexString(proposedEpoch),
                Long.toHexString(logicalclock.get()),
                sid,
                self.getMyId());