M #-: Output export error to stderr (#1823)
M #-: Output export error to stderr (#1823)

(cherry picked from commit 5bcfcf2501d4979ec3518b8f8cdfff9d1e537874)

OpenNebula/one,OpenNebula/one,OpenNebula/one,OpenNebula/one,OpenNebula/one,OpenNebula/one,OpenNebula/one,OpenNebula/one,OpenNebula/one