tests/test-changelog-exec.t

remotefilelog: actually fix (and test this time) a bytes vs str issue

I attempted this in 94670e124d29 but we didn't actually have any tests for this
function it seems, and I mistook "it works now" for it being fixed (when what
had actually happened was that my cache had populated enough that I didn't
trigger the minimum threshold on my reattempts).

Differential Revision: https://phab.mercurial-scm.org/D7785

#require execbit

b51a8138292a introduced a regression where we would mention in the
changelog executable files added by the second parent of a merge. Test
that that doesn't happen anymore

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

  $ echo bar > bar
  $ chmod +x bar
  $ hg ci -qAm 'add bar'

manifest of p2:

  $ hg manifest
  bar
  foo

  $ hg up -qC 0
  $ echo >> foo
  $ hg ci -m 'change foo'
  created new head

manifest of p1:

  $ hg manifest
  foo

  $ hg merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ chmod +x foo
  $ hg ci -m 'merge'

this should not mention bar but should mention foo:

  $ hg tip -v
  changeset:   3:c53d17ff3380
  tag:         tip
  parent:      2:ed1b79f46b9a
  parent:      1:d394a8db219b
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  files:       foo
  description:
  merge
  
  

  $ hg debugindex bar
     rev linkrev nodeid       p1           p2
       0       1 b004912a8510 000000000000 000000000000

  $ cd ..