sdk/lib/syslog/elf_stdio.shard.cml

// This shard instructs the ELF runner to forward stdout and stderr streams to LogSink.
{
    include: [ "syslog/client.shard.cml" ],
    program: {
        runner: "elf",
        forward_stderr_to: "log",
        forward_stdout_to: "log",
    },
}