Double hyphen (--) rendered as en dash (–) about sphinx-argparse HOT 7 CLOSED

#!/bin/bash

cd /tmp
rm -rf WORKDIR
mkdir WORKDIR
cd WORKDIR

sphinx-quickstart $PWD --extensions sphinxarg.ext --sep -p option_bug -a author -r 0.1 -l en --no-batchfile --makefile

cat >>source/conf.py <<EOF

man_pages = [
    ('cmd_main', 'tmpmain', 'tmpmain Documentation',
     ['name of author'], 1)
]

import sys
import os
sys.path.insert(0, os.path.dirname(os.getcwd()))

EOF

mkdir pymodule
touch pymodule/__init__.py
cat >pymodule/tmpmain.py <<EOF
#!/usr/bin/env python3
import argparse
def my_func_that_returns_a_parser():
    parser = argparse.ArgumentParser()
    parser.add_argument('foo', default=False, help='foo help')
    parser.add_argument('bar', default=False)
    parser.add_argument('--general', '-G', default=False, help='General option')

    subparsers = parser.add_subparsers()

    subparser = subparsers.add_parser('install', help='install help')
    subparser.add_argument('ref', type=str, help='foo1 help')
    subparser.add_argument('--upgrade', action='store_true', default=False, help='foo2 help')
    subparser.add_argument('-U', action='store_true', default=False, help='foo3 help')

    return parser
if __name__ == '__main__':
    p = my_func_that_returns_a_parser()
    p.parse_args()
EOF
chmod a+x pymodule/tmpmain.py

cat >source/index.rst <<EOF

Welcome to pymodule's documentation!
====================================

.. toctree::
   :maxdepth: 2
   :caption: Contents:

   cmd_main
EOF

cat >source/cmd_main.rst <<EOF
.. argparse::
   :module: pymodule.tmpmain
   :func: my_func_that_returns_a_parser
   :prog: fancytool
EOF

make man

man build/man/tmpmain.1