Comment 12 for bug 1009974

Reviewed: https://review.openstack.org/9179
Committed: http://github.com/openstack/openstack-manuals/commit/da29b30ead43a3b53d8092f63f3b2aaa5761d32a
Submitter: Jenkins
Branch: stable/essex

commit da29b30ead43a3b53d8092f63f3b2aaa5761d32a
Author: Lorin Hochstein <email address hidden>
Date: Mon Jun 25 09:16:38 2012 -0400

    Documents vncserver_listen flag when used with live migrations

    Live migration breaks if vncserver_listen is set to a specific host
    IP address.

    Documentation based on this comment from the openstack-operators
    mailing list:
    http://lists.openstack.org/pipermail/openstack-operators/2012-June/000965.html

    See also comments in bug 1009974.

    Cherry picked from https://review.openstack.org/8923

    Change-Id: I21b1d3eb5380effda3e2bfcd4f3ea15ea43f096a