D1683: sshpeer: allow for additional environment passing to ssh exe

[durin42 (Augie Fackler)]

durin42 accepted this revision.
durin42 added a comment.
This revision is now accepted and ready to land.


  Ugh. But clearly needed.

REPOSITORY
  rHG Mercurial

BRANCH
  default

REVISION DETAIL
  https://phab.mercurial-scm.org/D1683

To: ikostia, #hg-reviewers, mbthomas, durin42
Cc: durin42, mbthomas, mercurial-devel