[PATCH 2 of 2] revert: special case 'hg revert --all'

[Pierre-Yves David]

On 09/19/2014 06:53 PM, Durham Goode wrote:
> # HG changeset patch
> # User Durham Goode <durham at fb.com>
> # Date 1411177433 25200
> #      Fri Sep 19 18:43:53 2014 -0700
> # Node ID 4ba21a38b9dc7d351e88cc575516443046f6d913
> # Parent  b74b7d5f46d5d8ad13ca74e6b740970129090529
> revert: special case 'hg revert --all'

Augies said he was going to queue it. But a pparently he went too deep 
in the manifest internal and have probably been eaten by a grue by then.

The change looks okay to me (except that I would add a comment 
explaining we have this if/else purely for performance reason.)

But I cannot crew it because patch 1 is in the crew repo. I'll push it 
as soon as the crew repo makes it in main (with the comment things).

-- 
Pierre-Yves David