Fix --standard-json

[y-yamagata]

Fix

[coveralls]

Coverage remained the same at 61.594% when pulling d801b46 on y-yamagata:fix-standard-json into 14b4b37 on ethereum:master.

[westandy-dcp]

I thought the purpose of --standard-json was to output a json file from the solcjs compilation. But this looks like it's tryin to compile JSON provided to the solcjs?

[y-yamagata]

I thought the purpose of --standard-json was to output a json file from the solcjs compilation. But this looks like it's tryin to compile JSON provided to the solcjs?

As far as I read original master code, I look like it is used as compile option.

https://github.com/ethereum/solc-js/blob/master/solcjs#L53

if (argv['standard-json']) {
  var size = fs.fstatSync(process.stdin.fd).size;

  if (size <= 0) {
    abort('Empty input was read');
  }

  var input = fs.readSync(process.stdin.fd, size)[0];

  console.log(solc.compileStandardWrapper(input));
  process.exit(0);
}

Is it not necessary to read standard input for output?

[axic]

Thank you for your patch, this has been fixed now by #127.