[quorum_util] fix build
[quorum_util] fix build

This is a follow-up for 83b19ef320dba9a85a86845dc515587ce28c9ac3.
It seems the previous patch needed rebase prior to pushing.

Change-Id: Ided12a63f0cae539fa2dd690a44c29423ad7ff73
Reviewed-on: http://gerrit.cloudera.org:8080/8821
Reviewed-by: Mike Percy <e07a1fd797b473a9c849e618aa2ce06d8055760b@apache.org>
Tested-by: Alexey Serbin <864f6b82bd94e8dda64141d4274519ee66e0102e@cloudera.com>

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