[PATCH 3 of 8 STABLE] debugrevlog: handle empty chains/extra

[Pierre-Yves David]

On 02/01/2016 07:29 AM, timeless wrote:
> # HG changeset patch
> # User timeless <timeless at mozdev.org>
> # Date 1454273593 0
> #      Sun Jan 31 20:53:13 2016 +0000
> # Branch stable
> # Node ID 656e33b198f29f222c54e6eb546f5ecea8928c64
> # Parent  9f98a0cc6fa3c19af557766eeed16e06227ed4d1
> debugrevlog: handle empty chains/extra

Why don't we get a test change with this fix?

-- 
Pierre-Yves David