need to ignore swap files from getting into repository

[Sushil Kumar]

need to ignore swap files from getting into repository
currently the implemented ignore in .gitignore is *.swp
however vim goes beyond to generate these so to improve it could be done *.sw?

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/58936

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/58936
Committed: http://github.com/openstack/keystone/commit/083c07c4b5ac463af2f6c6820954d7bb667cd89d
Submitter: Jenkins
Branch: master

commit 083c07c4b5ac463af2f6c6820954d7bb667cd89d
Author: Sushil Kumar <email address hidden>
Date: Thu Nov 28 07:58:49 2013 +0000

    Updates .gitignore

    To ignore swap files from getting into repository
    currently the implemented ignore is *.swp
    however vim adds more swap files if these files exists,
    so improving this with *.sw?

    Change-Id: I5c70908e32fc5316e395c72810fc45f5db8a7a77
    Closes-Bug: #1255864