[PATCH 2 of 2] verify: add an option to skip checking transformed revisions

[Augie Fackler]

> On May 13, 2017, at 1:41 PM, Jun Wu <quark at fb.com> wrote:
> 
> Excerpts from Augie Fackler's message of 2017-05-12 22:13:12 -0400:
>> I'm not in love with the transform name bleeding out to the UX layer
>> here. Is there any way we can get this kind of functionality without
>> having to leak things this far?
> 
> How about keeping it as an internal config option but not command line
> flags?
> 
>> I'm assuming that for LFS the issue is that we might incur cache
>> misses for all the things, which would be regrettable. Do we have an
>> idea of what other storage layers look like? Is it plausible that
>> someone would want to do full verification of one store but not
>> another?
> 
> Maybe make that option "skip flags" instead of a bool?

A configlist sounds good to me.