message: ADD support for multiple app_code flags, last one wins
diff: @@ -13,7 +13,9 @@ import log from './log';
  export async function verifyOptions(cli, argv) {
  const cliOptions = {
  - appCode: cli.appCode || CHROMATIC_APP_CODE,
  + appCode: Array.isArray(cli.appCode)
  + ? cli.appCode[cli.appCode.length - 1]
  + : cli.appCode || CHROMATIC_APP_CODE,
  config: cli.config,
  only: cli.only,
  