Viper keys are case insensitive. (#150)
Viper keys are case insensitive. (#150)

* Viper keys are case insensitive.

This fixes an issue where import paths with uppercase (github.com/GoogleCloudPlatform :eyes:) were being canonicalized by Viper to all lowercase and the baseImageOverrides in `.ko.yaml` were failing to properly identify the base image.

I hit this in: https://github.com/tektoncd/pipeline/pull/2435 trying to opt some of the GCP images out of `:nonroot`.

This also adds some logging to a place where I see a lot of folks have issues with `ko` where we swallow an error.  I hit it experimenting with variants on the `ko publish` import path, and added the logging to debug.

* Drop the new log statement
ko-build/ko,ko-build/ko