From 8ea299bcbc85aeaf5348d99614b35433287bec6b Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@inktank.com>
Date: Mon, 11 Mar 2013 23:34:23 -0500
Subject: [PATCH] libceph: use only ceph_msg_data_advance()

The *_msg_pos_next() functions do little more than call
ceph_msg_data_advance().  Replace those wrapper functions with
a simple call to ceph_msg_data_advance().

This cleanup is related to:
    http://tracker.ceph.com/issues/4428

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
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