Leverage existing bash completion

[junegunn]

This is a PoC implementation for leveraging existing bash completion

Example: kubectl

However, when we select a command, fzf pastes the whole line to the command, which is definitely not what we want.

Example: git

[lincheney]

I think you're running into something related to this spf13/cobra#1508, spf13/cobra#1509
I believe kubectl uses cobra which is adding those extra descriptions.
If you set an appropriate $COMP_TYPE cobra will stop doing it, but you will lose the descriptions e.g. lincheney/fzf-tab-completion@d88bf5b
or something like what ble.sh does where they detect and specially handle cobra completions akinomyoga/ble.sh@71d0736