Tweak compare_codereview.py.

  - summary at end so I don't have to scroll back up
  - tweak the diff markers a bit
  - strip the test runtimes

BUG=skia:
R=halcanary@google.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/211233002

git-svn-id: http://skia.googlecode.com/svn/trunk@13935 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed