D5372: perfrevlogwrite: use progress helper on modern hg

[martinvonz (Martin von Zweigbergk)]

martinvonz added a comment.


  In https://phab.mercurial-scm.org/D5372#81858, @durin42 wrote:
  
  > per yuya, this has to support old hgs
  
  
  Thanks for the reminder. I was thinking of just leaving this on the old API, but now that I'm deprecating `ui.progress()`, this needs to be migrated. Done.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D5372

To: martinvonz, #hg-reviewers, durin42
Cc: durin42, yuja, mercurial-devel