bundle2: convert ints to strings using pycompat.bytestring() Fixes some Python 3 regressions. We don't use %d here because the part id is actually an Optional[int]. It should always be initialized to a non-None value by the time this code executes, but we shouldn't blindly depend on that being the case. Differential Revision: https://phab.mercurial-scm.org/D272

#require execbit

  $ hg init repo
  $ cd repo
  $ echo foo > foo
  $ chmod 644 foo
  $ hg ci -qAm '644'

  $ chmod 755 foo
  $ hg ci -qAm '755'

reverting to rev 0

  $ hg revert -a -r 0
  reverting foo
  $ hg st
  M foo
  $ hg diff --git
  diff --git a/foo b/foo
  old mode 100755
  new mode 100644

  $ cd ..