Updated openstack/openstack
Project: openstack/python-swiftclient  0ef054585a93f80ba4bc72f953f832372e65db60
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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: I48846345de6838735d2d2e46328698f6a526f397
Closes-Bug: #1255876