py3: add b'' prefixes in tests/test-help.t This takes us close to make the test passing. # skip-blame because just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D5028

py3: use sys.stdout.buffer for binary output in tests/svnxml.py Just following 6c0b1d964537ab62d76c208f5f04ab414814c94e here. Differential Revision: https://phab.mercurial-scm.org/D5027

py3: use '%s' instead of %r in hgext/convert/subversion.py Using '%r' on bytes in python 3 adds b'' prefixes to output which is bad. I don't see a reason why we want to repr() the string here, so just switched to '%s'. This fixes some output failure in one of the subversion test. Differential Revision: https://phab.mercurial-scm.org/D5026

py3: make test-contrib-perf.t work on python 3 Differential Revision: https://phab.mercurial-scm.org/D5025

py3: add 3 more passing tests to whitelist caught by buildbot Differential Revision: https://phab.mercurial-scm.org/D5024

py3: add some r'' prefixes in hgext/narrow/narrowwirepeer.py This fixes test-narrow-widen-no-ellipsis.t on Python 3. # skip-blame because just r'' prefixes Differential Revision: https://phab.mercurial-scm.org/D5023