Fix --version flag not showing correct version

[CTY-git]

Issue is due to inequivalent package name and CLI name. By setting the package_name param to patchwork-cli click will now look for the correct package.

[patched-admin]

The code change in patchwork/app.py updates the click.version_option function by adding a space before the package name and changing the value from "patchwork_cli" to "patchwork-cli" for consistency in naming and formatting.

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• File changed: patchwork/app.py
  The diff in the patchwork/app.py file updates the click.version_option function by adding a space before "package_name" and changing the value from "patchwork_cli" to "patchwork-cli" for consistency in naming and formatting.