tests/README

py3: byteify gendoc.py

This is mostly b'' prefixing, with some cargoculting of help.py to get around
`textwrap.dedent()` and __doc__ string requirements.

To run the tests, do:

cd tests/
python run-tests.py

See https://mercurial-scm.org/wiki/WritingTests for
more information on writing tests.