Prevents swap files from being found by Git
Prevents swap files from being found by Git

Since swap files can range from *.saa to *.swp, all of these extensions
are now ignored by Git.

Change-Id: I373a98b47002f7eede52b7091dde6ad820b8dfc3
Closes-Bug: #1255865

darren-wang/gl,takeshineshiro/glance,scripnichenko/glance,jumpstarter-io/glance,paramite/glance,stevelle/glance,JioCloud/glance,kfwang/Glance-OVA-OVF,klmitch/glance,sigmavirus24/glance,dims/glance,wkoathp/glance,sigmavirus24/glance,openstack/glance,openstack/glance,paramite/glance,dims/glance,darren-wang/gl,JioCloud/glance,vuntz/glance,kfwang/Glance-OVA-OVF,ozamiatin/glance,klmitch/glance,jumpstarter-io/glance,saeki-masaki/glance,rajalokan/glance,akash1808/glance,akash1808/glance,openstack/glance,scripnichenko/glance,wkoathp/glance,takeshineshiro/glance,rajalokan/glance,ozamiatin/glance,saeki-masaki/glance,stevelle/glance,vuntz/glance