code: function detectUserOptions () {
  	let outputPath = program.output;
  	let userOptions = {
  		output: false
  	};
  
  	cliProps.forEach(prop => {
  		let value = program[prop];
  
  		if ((prop === 'stream' || prop === 'langdetect') && value) {
  			return;
  		}
  		if (value !== undefined) {
  			userOptions[prop] = value;
  		}
  	});
  	if (typeof outputPath === 'string' && outputPath.length) {
  		userOptions.output = outputPath;
  	}
  	return userOptions;
  }
docs: Detect user's specified properties
  @returns {Object}
  @private
  @sourceCode