Hi,

summary: Fix a few hyphens in argparse.rst.

- :synopsis: Command-line option and argument parsing library. + :synopsis: Command-line option and argument-parsing library.

I believe that change should be reverted. “argument parsing library” is a noun determined (qualified) by another noun itself determined by a noun, not by an adjective.

- followed by zero or one command-line args. When parsing the command-line, if + followed by zero or one command-line args. When parsing the command line, if

You changed “arg” to “argument” in one place but not throughout. I think it’s best to use only full words in the docs (and for names in code, as recommended by PEP 8 :). Regards