New comment by dataCobra on void-packages repository

https://github.com/void-linux/void-packages/pull/38583#issuecomment-1211562124

Comment:
> https://github.com/pimutils/khal/blob/master/doc/source/install.rst#shell-completion
> 
> just add the commands that redirect to a file, then vcomplete those files in post_install

I assumed you mean that and I tried, but the options for khal that are autocompleted doesn't
even work... I've also installed directly into a virtualenv with pip to check if the behavior
is different. But it's the same. The completed options are not implemented in khal.

EDIT:
Here is an error message:
```
Error: Got unexpected extra argument (configure)
```