D2943: grep: fixes errorneous output of grep in forward order

[sangeet259 (Sangeet Kumar Mishra)]

sangeet259 added a comment.


  @yuja rebase it on which revision?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D2943

To: sangeet259, #hg-reviewers, yuja
Cc: yuja, mercurial-devel