Merge "Sysconfig define a whitelist of permitted backup transports" into nyc-dev am: 11d9586117 am: b7ae368079
am: c4999be6e3

* commit 'c4999be6e34297f595c87cbe4c274e2bc8c1665a':
  Sysconfig define a whitelist of permitted backup transports

Change-Id: I8827677fe788f055fcb8c677915219ab179fa4be