GitLab

Updated the script to use list comprehension, which is supported
on all versions of python above 2.0

TBR=wez@chromium.org

Change-Id: I8f7ffad323c40a51e77374c8baba40ebbf463061
Reviewed-on: https://chromium-review.googlesource.com/900132Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Commit-Queue: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#534170}