py3: use bytes stdout in test-check-help.t
Setting stdout to binary seemed to have no effect on Windows, as it was
appending a literal '\r' to each topic keyword. This also stops prepending 'b'
to the topic on all platforms as well.
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install::
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing::
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See https://mercurial-scm.org/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.