tests: open file in binary mode to use POSIX end-of-line style anywhere
Before this patch, "test-context.py" fails on Windows environment,
because "diff" output contains unexpected "\r" character.
Opening the target file in text mode causes this automatic end-of-line
conversion.
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 http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.