howto build executable so that it has vrl subcommand

[tshepang]

cargo build does not work on latest (754d52b)

❯ cargo run --release -- vrl
    Finished release [optimized] target(s) in 0.30s
     Running `target/release/vector vrl`
error: Found argument 'vrl' which wasn't expected, or isn't valid in this context

[jszwedko]

Hi @tshepang !

Thanks for reporting that, it looks like vector vrl was accidentally dropped from the default compilation features. I'll fix that.

As a side note, I'd recommend running cargo run from the lib/vrl/cli directory to avoid building all of Vector just to run the VRL CLI which should cut down on compilation time.

[tshepang]

fixed by #13347