Merge "Revert "Revert "bootstat: Handle v1 record files which do not contain file contents.""" into nyc-dev am: c1b10a9
am: 93d83a5

* commit '93d83a55d47e2372c0f4a2b07f3852f2e5d3476c':
  Revert "Revert "bootstat: Handle v1 record files which do not contain file contents.""