Updated openstack/openstack
Project: openstack-dev/devstack  c89a77875e7add7e81c757d027965284ae4ff4b7
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Backport Swift process kill

Backport https://review.openstack.org/70867 to kill all Swift services.

Change-Id: I8cc7b4058f949fa7b2872a864c305d2c33e18ad6