Convert a few tests from CRLF to LF line endings

The CRLF line endings seemingly cause the apply_issue step to fail in
trybot runs for https://codereview.chromium.org/106773003

BUG=none
R=arv@chromium.org

Review URL: https://codereview.chromium.org/107393002

git-svn-id: svn://svn.chromium.org/blink/trunk@163305 bbb929c8-8fbe-4397-9dbb-9b2b20218538