fix: overlooked env dumping on DEBUG3

[ahlinc]

Also removed examples/fixtures/dirtree folder with demo files, there is a script for it.
I'd suggest to make a minor version change for this.

[antonbabenko]

I know about the script. Here is the explanation why dirtree is there :) There are examples, which always should be possible to execute with the same commands (terraform init, plan, apply) across all terraform-aws-modules repositories. Either change example and remove reference of dirtree there (which is bad, because we want to test with complex dirtree, too), or leave dirtree dirs as is (even if it does not look so nice).

[github-actions]

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