[PATCH STABLE RFC] largefiles: load the convert extension as needed to register config items

[Yuya Nishihara]

On Thu, 23 Nov 2017 14:29:25 -0500, Matt Harbison wrote:
> # HG changeset patch
> # User Matt Harbison <matt_harbison at yahoo.com>
> # Date 1511417702 18000
> #      Thu Nov 23 01:15:02 2017 -0500
> # Branch stable
> # Node ID 939e30e7ca1c925e5209f03805cd7f18583f2550
> # Parent  02845f7441aff30bc01975a5881cabfa922c12d4
> largefiles: load the convert extension as needed to register config items

Perhaps the easiest way around is to move all configitems into core as we did
for the share extension.