message: check if string = 'false'
diff: @@ -411,10 +411,12 @@ module.exports = (env) => {
  const packOptions = {
  upload: true,
  fail_build: false,
  - branch: process.env.TRAVIS_PULL_REQUEST
  + branch:
  + process.env.TRAVIS_PULL_REQUEST !== 'false'
  ? process.env.TRAVIS_PULL_REQUEST_BRANCH
  : process.env.TRAVIS_BRANCH,
  - commit: process.env.TRAVIS_PULL_REQUEST
  + commit:
  + process.env.TRAVIS_PULL_REQUEST !== 'false'
  ? process.env.TRAVIS_PULL_REQUEST_SHA
  : process.env.TRAVIS_COMMIT
  };
  