When running rebaseline.py, the format of the file changes from
what is currently checked in, but the actual data remains the
same. Update the format so future changes will be easier to see
visually (not mixed in with format changes).
Unreviewed.
Review URL: https://codereview.chromium.org/26888010
git-svn-id: http://skia.googlecode.com/svn/trunk@11726 2bbb7eff-a529-9590-31e7-b0007b416f81