message: Fix incorrect variable reference 'i' -> 'k'.
diff: var encoderFormats = [];
  var formats = capabilitiesMo.optMslArray(KEY_ENCODER_FORMATS);
  for (var k = 0; formats && k < formats.size(); ++k) {
  - var format = formats.getString(i);
  + var format = formats.getString(k);
  var encoderFormat = MslEncoderFormat.getFormat(format);
  // Ignore unsupported formats.
  if (encoderFormat)
  