py3: add b'' prefix in tests/test-revlog-v2.t
After this, the test works on Python 3. There is some extra return value by
open().write() I think which needs to be handled.
# skip-blame because just b'' prefix
Differential Revision: https://phab.mercurial-scm.org/D2509
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.