tests/test-merge-subrepos.t

test-ssh: stop quoting dummyssh invocation for Windows

The other invocations aren't quoted, and Windows doesn't like the single quotes:

  diff --git a/tests/test-ssh.t b/tests/test-ssh.t
  --- a/tests/test-ssh.t
  +++ b/tests/test-ssh.t
  @@ -520,20 +520,8 @@ remote hook failure is attributed to rem
     $ echo "pretxnchangegroup.fail = python:$TESTTMP/failhook:hook" >> remote/.hg/hgrc

     $ hg -q --config ui.ssh="python '$TESTDIR/dummyssh'" clone ssh://user@dummy/remote hookout
  +  abort: no suitable response from remote hg!
  +  [255]
     $ cd hookout
  +  $TESTTMP.sh: line 264: cd: hookout: No such file or directory
     $ touch hookfailure
  -  $ hg -q commit -A -m 'remote hook failure'
  ....

  $ hg init

  $ echo a > a
  $ hg ci -qAm 'add a'

  $ hg init subrepo
  $ echo 'subrepo = http://example.net/libfoo' > .hgsub
  $ hg ci -qAm 'added subrepo'

  $ hg up -qC 0
  $ echo ax > a
  $ hg ci -m 'changed a'
  created new head

  $ hg up -qC 1
  $ cd subrepo
  $ echo b > b
  $ hg add b
  $ cd ..

Should fail, since there are added files to subrepo:

  $ hg merge
  abort: uncommitted changes in subrepository 'subrepo'
  [255]