--namespace and --exclude-namespaces seems to be mutually excluded options

[propalparolnapervom]

It happened my very first steps with kube-downscaler were on the Dev env, which is shared with many other people. So I tried to be as careful as it possible and tried to stay within my test Namespace.

Following parameters have been used simultaneously at that time:

• --namespace - to explicitly include necessary Namespace;
• --exclude-namespaces - to implicitly include necessary Namespace (by excluding all other Namespaces).

Didn't find any other information in documentation, so I was hoping it could help to double check that only necessary Namespace is affected. But no downscaling was done, until I started to use only one of those parameters.

I'm not good enough in coding to find any confirmation, but it seems that those parameters are mutually excluded. If you can confirm it, I could create a PR to add appropriate notes to the documentation. I believe it might save some time for some users.

P.S. Pretty useful tool is here. Love it.

[hjacobs]

@propalparolnapervom thanks for the feedback, this is also related to #119.

[propalparolnapervom]

appropriate documentation suggestion was made in PR #124