Log Deno.command process output

const command = new Deno.Command(
  "java",
  {
    args: [
      "-Xms512M",
      "-Xmx512M",
      "-XX:+UseG1GC",
      "-XX:G1HeapRegionSize=4M",
      "-XX:+UnlockExperimentalVMOptions",
      "-XX:+ParallelRefProcEnabled",
      "-XX:+AlwaysPreTouch",
      "-jar",
      "proxy.jar"
    ],
    stdout: "piped",
    stdin: "piped",
    stderr: "piped",
  },
);
const process = command.spawn();
for await (const line of readLines(process.stdout)) {
    emit_console_out(line);
}