Updated openstack/openstack
Project: openstack/nova  e3c9ed09efe340f34f60eaff71e8644f5bdcf986
null
Fix power manager hangs while executing ipmitool

In nova/virt/baremetal, IPMI power manager uses ipmitool with '-F' option to
specify a file containing the remote server password.  When the passowrd was
empty, ipmitool ignores that file and asks user to set password in stdin.
This makes the thread stop.

This patch changes power manager to write '\0' to the password file in the
case of empty password, to force the password on impitool.

Closes-bug: #1237802

Change-Id: I44f56129a8ce2af4dda8dea35eb9c60d9518d54b