log: log the full traceback on exceptions
log: log the full traceback on exceptions

Log the full traceback on exceptions.

Change-Id: Id9008e32a223b0f407df86048227cef642c21a16
Bug-Url: https://bugzilla.redhat.com/1425233
Signed-off-by: Simone Tiraboschi <cb03129c66ba4da7ba7044049d0f43907bf857bb@redhat.com>

oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha