This launches Terraform inside a headless dlv configured to accept a
remote debugging process. It's configured this way so it can be easily
used from a debugger GUI integrated into an IDE/editor, but it can also
be used from the CLI by running the command it prints.
Using a remote debugger here is useful even when debugging with the CLI,
since it keeps Terraform's verbose and colorful output from interfering
with the debugger UI.
Martin Atkins