Updated openstack/openstack
Project: openstack/nova  429eadebb1ed9881cf29d30bdb6f3ed21b62836f

Remove except Exception cases

Replaced 'except Exception' cases with the specific exceptions
that the given code can throw in the util module. In some cases
we added extra unit test to cover the specific exception.

Change-Id: I980237ed9d27f122b4725b8c05015a81764dd6b8
Partial-Bug: #1223605