ignore: remove .hgignore from ignore list if nonexistent
Previously we would always pass the root .hgignore path to the ignore parser.
The parser then had to be aware that the first path was special, and not warn if
it didn't exist.
In preparation for making the ignore file parser more generically usable, let's
make the parse logic not aware of this special case, and instead just not pass
the root .hgignore in if it doesn't exist.
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.