py3: add b'' prefixes in tests/test-progress.t
This makes the test pass on Python 3.
# skip-blame because just b'' prefixes
Differential Revision: https://phab.mercurial-scm.org/D5033
py3: add b'' prefixes to tests/test-keyword.t
This test is now pretty close to passing on Python 3.
# skip-blame because just b'' prefixes.
Differential Revision: https://phab.mercurial-scm.org/D5032