Updated openstack/openstack
Project: openstack/requirements  87e02baca2db26e8feec1b63cce3779837b20ff4
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Use new hplefthandclient

The hplefthandclient is required for HP LeftHand (LH) StoreVirtual
Cinder iSCSI Driver unit tests.

Change-Id: I1e86d4bdc410c00e108615411fd4c317c4d7b7e9