tree 1413ed6381204dcfff08e765e9100f91b495d336
parent 86462dfb1e17af0bb65892aa9977221f58cf7131
author Dave Borowitz <dborowitz@google.com> 1391547377 -0800
committer Dave Borowitz <dborowitz@google.com> 1391547377 -0800

BlameCache: handle null source commit

BlameServlet properly handles these null results when rendering the
output, but when the cache code was extracted we did not properly
check for null.

Change-Id: I18cd1cda9b1df379c107f0d899161be3b6e9f514