[issue35307] Command line help example is missing "--prompt" option

[HolgerFrey]

New submission from HolgerFrey <python at holgerfrey.de>:

In the documentation of the command line options of the "vent" module, the option "--prompt" is missing:
    
Current text:
> [...]
> 
> The command, if run with -h, will show the available options:
> 
> usage: venv [-h] [--system-site-packages] [--symlinks | --copies] [--clear]
>              [--upgrade] [--without-pip]
>              ENV_DIR [ENV_DIR ...]
> 
> [...]

The prompt option is also missing in the rest of the example output

output of python3 -m venv -h:
> python3 -m venv -h
> usage: venv [-h] [--system-site-packages] [--symlinks | --copies] [--clear]
>             [--upgrade] [--without-pip] [--prompt PROMPT]
>             ENV_DIR [ENV_DIR ...]
> [...]

----------
assignee: docs at python
components: Documentation
messages: 330376
nosy: daftwullie, docs at python
priority: normal
severity: normal
status: open
title: Command line help example  is missing "--prompt" option
type: enhancement
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35307>
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