Ignore vim .swp files.

BUG=None
TEST=do a 'git add' while editing a file with vim

Change-Id: I8137368083bca10c672b5c0b3cdc085603568b2b
Reviewed-on: https://gerrit.chromium.org/gerrit/43080
Commit-Queue: Richard Barnette <[email protected]>
Tested-by: Richard Barnette <[email protected]>
Reviewed-by: Scott Zawalski <[email protected]>
1 file changed