Nova devref documentation on hooks is incorrect

[Lars Kellogg-Stedman]

The syntax suggested for adding hooks to nova via setup.py entrypoints is:

    entry_points = {
        'nova.hooks': [
            'resize_hook': your_package.hooks.YourHookClass,
        ]
    },

But this is incorrect. The class name and module name need to be delimited with ':':

    entry_points = {
        'nova.hooks': [
            'resize_hook': your_package.hooks:YourHookClass,
        ]
    },

Follow the example in the existing documentation will result in hooks that never get called.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/124558

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/124558
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=1345a6a11db4a8ea60d52275bc2efa3b4818546a
Submitter: Jenkins
Branch: master

commit 1345a6a11db4a8ea60d52275bc2efa3b4818546a
Author: Lars Kellogg-Stedman <email address hidden>
Date: Fri Sep 26 22:00:27 2014 -0400

    Fix hook documentation on entry_points config

    The syntax suggested for adding hooks to nova via setup.py entrypoints is:

        entry_points = {
            'nova.hooks': [
                'resize_hook': your_package.hooks.YourHookClass,
            ]
        },

    But this is incorrect. The proper syntax for an entry_points entry is:

        entry_points = {
            'nova.hooks': [
                'resize_hook=your_package.hooks:YourHookClass',
            ]
        },

    Change-Id: Id7bc6891dc542d4317e82e15300c7293eb0d17a0
    Closes-bug: #1374666