tests/test-gendoc-sv.t

tests: use items() in test-remotefilelog-datapack.py

Performance doesn't matter in tests. iteritems() doesn't exist
in Python 3.

Differential Revision: https://phab.mercurial-scm.org/D5757

#require docutils gettext

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