Function get_env_interp

crates/cli/src/docker_init.rs:586–588

FOO=${BAR}

(k: &str, v: &str)

/// FOO=${BAR}
fn get_env_interp(k: &str, v: &str) -> (String, Option<SingleValue>) {
    get_env_val(k, &format!("${{{v}}}"))
}

/// FOO=bar
fn get_env_val(k: &str, v: &str) -> (String, Option<SingleValue>) {