sparse: use self instead of repo.dirstate
"self" here is the dirstate instance. I'm pretty confident that self
and repo.dirstate will be the exact same object. So remove a dependency
on repo by just looking at self.
Mercurial's documentation is kept in reStructuredText format, which is
a simple plain text format that's easy to read and edit:
http://docutils.sourceforge.net/rst.html
It's also convertible to a variety of other formats including standard
UNIX man page format and HTML. You'll need to install Docutils:
http://docutils.sourceforge.net/
Use the Makefile in this directory to generate the man and HTML pages.