usage: test-app [-h] [-H] [-v] [-e] [-E] [-c CONFIG] [greeting]

Print a greeting.

positional arguments:
  greeting              how you want to be greeted

options:
  -h, --help            show this help message and exit
  -H, --help-config     show the config help and exit
  -v, --version         show the version and exit
  -e, --edit-config     edit the config file and exit
  -E, --update-and-edit-config
                        rewrite the config file, open it for editing
                        and exit
  -c CONFIG, --config CONFIG
                        use this config file instead of the default
