period_scheduler: Fix arguments to logger

A previous cleanup change, incorrectly passes the log message
as a tag for the logger command.

BUG=chromium:368402
TEST=Run periodic_scheduler with a small CHECK_DELAY and verify log
     messages in /var/log/messages.

Change-Id: I70478007f39aa83f44c10f28eb50db9cd4e3e4a7
Reviewed-on: https://chromium-review.googlesource.com/197582
Reviewed-by: Richard Barnette <jrbarnette@chromium.org>
Tested-by: Gaurav Shah <gauravsh@chromium.org>
Commit-Queue: Gaurav Shah <gauravsh@chromium.org>
1 file changed