When we trace to file, add eol of each trace message.

BUG=webrtc:4864
TEST=Manual Test with voe_cmd_test
R=pbos@webrtc.org
TBR=kjellander@webrtc.org

The regression is introduced in #8529, Review URL: https://webrtc-codereview.appspot.com/34329004.

Review URL: https://codereview.webrtc.org/1256773002 .

Cr-Commit-Position: refs/heads/master@{#9644}
1 file changed