remote-file-size - get the size of a remote file

  usage: remote-file-size [options] <url>

  options:
    -h, --help                  show help and usage
    -v, --version               show version
    -r, --raw                   show raw result (no pretty formatting)
    -f, --follow-redirect       follow redirects (true by default)
    -m, --max-redirects <num>   set max number of redirects (defaults to 2)

  example:
    remote-file-size http://registry.npmjs.org/argsplit/-/argsplit-1.0.2.tgz
    // => 1.55 kB

    remote-file-size --raw http://registry.npmjs.org/argsplit/-/argsplit-1.0.2.tgz
    // => 1548