log_util: Fix lint errors.

BUG=chromium:403086
TEST=cros flash

Change-Id: Ie92c1de37bf5090faef0ddbe8a545a2572636da6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/1833684
Tested-by: Achuith Bhandarkar <achuith@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Achuith Bhandarkar <achuith@chromium.org>
1 file changed