Support --version option

[vladdeSV]

The option --version is common in many other tools (git --version, brew --version, wget --version, etc.).

It is so common that I instinctively run klog --version when I want to find out the version of klog I am using. However, --version is not a valid option, and instead just the action version should be used.

I suggest allowing klog --version to be run, which would act the same way as klog version does today.

[vladdeSV]

Out of all the available actions klog supports, version is the only one which I believe belongs as an option for the base executable klog.

[jotaen]

As far as I remember there was some caveat with the CLI library I’m using. I’m not exactly sure anymore what the issue was, however. Generally, I agree it’s more intuitive to support klog --version / klog -v

[vladdeSV]

Sounds great. One point of notice, and I am not sure if this applies here, but -v sometimes is used for verbose output (and the more vs you add, the more vebose, eg. -vvv)

[jotaen]

Good point, I think --version should be enough then.