am 469fea0b: Add "option javanano_use_deprecated_package = true;\n" to protos compiled with the nano proto compiler that are referenced in Java files.

* commit '469fea0b390e893c1eb8115ff6c5f997916be4c1':
  Add "option javanano_use_deprecated_package = true;\n" to protos compiled with the nano proto compiler that are referenced in Java files.