fancyopts: use getopt.gnu_getopt()
The issue described in the docstring has been fixed since Python
20ab2260dc93,
which is in 2.7.
https://hg.python.org/cpython/rev/
20ab2260dc93
https://bugs.python.org/
issue4458
This fixes the handling of '--' value.
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.