DynamicSelectWidget.get_add_item_url excessively wraps args parameter for reverse

[Timur Sufiev]

See https://github.com/openstack/horizon/blob/stable/havana/horizon/forms/fields.py#L41 - self.add_item_link_args is wrapped with additional list, so in case we pass several arguments to resolver inside add_item_link_args attribute, the final url won't be resolved as expected.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/82833

[Openstack Gerrit (openstack-gerrit)]

Reviewed: https://review.openstack.org/82833
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=88c0436fa1f21fceea95f8b4c192419dd9bdeaa1
Submitter: Jenkins
Branch: master

commit 88c0436fa1f21fceea95f8b4c192419dd9bdeaa1
Author: Timur Sufiev <email address hidden>
Date: Tue Mar 25 18:17:55 2014 +0400

    Fix DynamicSelectWidget.get_add_item_url() method.

    Do not wrap self.add_item_link_args in an additional list because it
    makes impossible to pass more than one arg (i.e. tuple or list of
    args) to url resolver.

    Change-Id: Idf6d5d1f27c9176f1de93a475e0f1abbae5ee275
    Closes-Bug: #1297317