tests/test-gendoc-sv.t

test-lfs: add tests covering local exchanges

The root issue here is that requirements are not exchanged and preserved on
push/pull.  This can be handled with a changegroup hook.  Testing for remote
exchanges is much more extensive (it's possible for one process or the other to
not have the extension loaded at all), so it is added separately.

#require docutils gettext

  $ $TESTDIR/check-gendoc sv
  checking for parse errors