pre-upload: silence some OWNERS line length complaints

lines with file names can get to be pretty long, and there's nothing
obvious that can be done to fix that.

BUG=chromium:982802
TEST=Tried to `repo upload` I25abfcf66bb0ba4abf6f581ad506d7e56e1a75bc
     again; no lint complaints

Change-Id: I0c555bb4de6392f3c0f7278b57e6ba6eabb7f3b9
Reviewed-on: https://chromium-review.googlesource.com/1695700
Tested-by: George Burgess <gbiv@chromium.org>
Commit-Ready: George Burgess <gbiv@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>