Usage: rebar config [-h] [--output {text,json}] [--root ROOT]

Show the resolved rebar configuration and the precedence layer (cli > env >
project > user > default) each value came from.

options:
  -h, --help            show this help message and exit
  --output, -o {text,json}
  --root ROOT           repo root for project-config discovery (default: auto)
