D2130: py3: replace file() with open() in test-encoding.t

[yuja (Yuya Nishihara)]

yuja requested changes to this revision.
yuja added a comment.
This revision now requires changes to proceed.


  Perhaps these open()s need 'b' because we're testing an encoding issue.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D2130

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