[issue14102] argparse: add ability to create a man page

[Oz Tiram]

Oz Tiram <nahumoz at gmail.com> added the comment:

As already pointed out, it can get the parser somehow, you don't need  an explicit extra option --man. That's the approach suggesed in:

man-argparse and build_manpage.py attached here

You can use it a make file like this:

install:
      ./setup.py build_manpage 
      ./setup.py install
      install -D -m 644 foo.1 ${DESTDIR}/usr/share/man/man1

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