Adds error checks in function evpaxos_config_read().
Adds error checks in function evpaxos_config_read().

tudang/paxosudp,tudang/paxosudp,tudang/paxosudp,tyh20082000/libpaxos,tudang/paxosudp,tudang/paxosudp,tyh20082000/libpaxos,tudang/paxosudp,tyh20082000/libpaxos,tyh20082000/libpaxos