Sheriff-o-matic: Move BUILDING builder row to end

Fixes a regression introduced by sorting the result types by name.

Also a minor style tweak so the builder names stay aligned.

NOTRY=true

Review URL: https://codereview.chromium.org/406523004

git-svn-id: svn://svn.chromium.org/blink/trunk@178501 bbb929c8-8fbe-4397-9dbb-9b2b20218538