Add init and pre-init hook defaults as supported config options

[mtalexan]

Since the --init-hook and --pre-init-hook are the current method for resolving custom TLS certificates being needed by corporate proxies (see #493), being able to configure fixed hooks that don't need to be manually added on the command-line each time are useful.

The variables already existed and could be overridden by the config files (which are just sourced into the scripts), but the --pre-init-hook was processed strangely and was appending the arguments needed when calling docker at argument parsing-time instead (see #497). The command-line options override the config file options already, so no changes were needed for that.

Unrelated, but there was a typo in the bashate command in the CONTRIBUTING guide as well.

/closes #497

[89luca89]

Hi @mtalexan

seems all ok for me, did a couple of changes so we can handle the variable as a normal one, but seems all ok
Will wait for the CI to finish and will merge if all ok 👍

Thanks a lot!

[mtalexan]

Seems reasonable to me, supporting blank argument for the pre-init-hook in distrobox-init so that it can be blindly passed as part of distrobox-creates call to it.

I don't follow what the GitHub workflow changes are, it looks like there's some outside generation step you ran and then reference as the new config?

[89luca89]

Seems reasonable to me, supporting blank argument for the pre-init-hook in distrobox-init so that it can be blindly passed as part of distrobox-creates call to it.

Yep 👍

I don't follow what the GitHub workflow changes are, it looks like there's some outside generation step you ran and then reference as the new config?

No it's just GH has deprecated some stuff and the CI was not going ahead so I just fixed this now 🤷

[89luca89]

Merged, thanks a lot!