VSphereStorageDriver does not document the platform default

API fields that are defaulted by a controller should document what their default is for each release version.
Currently the field documents that "if empty, subject to platform chosen default", but it does not state what that is.

To fix this, please add, after the platform chosen default prose:
// The current default is XYZ.

This will allow users to track the platform defaults over time from the API documentation.

I would like to see this fixed before 4.13 and 4.14 are released please, it should be pretty quick to fix if we understand what those defaults are.

1.
2.
3.