knf-cli 0.3.2

Merge layered configuration files and print the result
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---
source: crates/knf/tests/cli.rs
expression: "err_stderr(with_env(&mut knf(&dir), &[(\"KNF_TEST_REGION\", None)]).args(args),\n&args,)"
---
error: unresolved reference
  --> server.url: `db.hostname`
  --> tags[0]: `env:KNF_TEST_REGION`
help: `${key.path}` names a key in the merged document, `${env:NAME}` an environment variable
help: drop --interpolate to pass `${...}` through untouched