cancel buttons look is different from others in migrate host

[Masco]

in migrate host form the cancel button doesn't look uniform.

screen shot added

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/202038

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/202038
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=4f16e120940ad1b19213a32a90c36f2cc9362695
Submitter: Jenkins
Branch: master

commit 4f16e120940ad1b19213a32a90c36f2cc9362695
Author: Masco Kaliyamoorthy <email address hidden>
Date: Wed Jul 15 16:14:49 2015 +0530

    fixed the cancel button look in migrate host

    In migrate host form the cancel button looks odd
    when compare to other cancel buttons.

    This patch making the cancel button looks uniform with others.

    Change-Id: I587fa271406fdb9b2f556d84326574a3502dfa21
    Closes-Bug: #1474782