Log terminate_connection exception with traceback
Log terminate_connection exception with traceback

The volume manager is not logging a traceback for
volume driver terminate_connection failures.

This can result in an opaque error message which
is hard to troubleshoot.

Closes-Bug: #1598214
Change-Id: Ibde64e0715cc861b73434e6a9c676c7e25a37a18

ge0rgi/cinder,NetApp/cinder,Datera/cinder,Hybrid-Cloud/cinder,Hybrid-Cloud/cinder,Nexenta/cinder,mahak/cinder,Nexenta/cinder,Datera/cinder,mahak/cinder,j-griffith/cinder,bswartz/cinder,openstack/cinder,phenoxim/cinder,NetApp/cinder,j-griffith/cinder,cloudbase/cinder,eharney/cinder,eharney/cinder,bswartz/cinder,openstack/cinder,phenoxim/cinder,cloudbase/cinder