D2240: histedit: convert bool to bytestring manually

[durin42 (Augie Fackler)]

durin42 added a comment.


  Yeah, but it failed tests. I suspect the difference between https://phab.mercurial-scm.org/D2169 and this is the extra parens in my version?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D2240

To: durin42, #hg-reviewers, indygreg
Cc: indygreg, mercurial-devel