git clone writes to stderr

Question

When I run a git clone command using child_process.exec it outputs to stderr instead of stdout

const proc = child_process.exec(bashCommand, {
      cwd
    });

    proc.stdout.on("data", data => {
      debug && console.log(data);
      outputCB && outputCB(data);
    });

    proc.stderr.on("data", data => {
      debug && console.error(data); // THIS FIRES
      errorCB && errorCB(data);
    });

How do I get it to output non-errors to stdout while still outputting REAL errors to stderr