Fix pull requests failing on travis

.travis.yml

@@ -12,13 +12,13 @@ install:
 - sudo curl -L -o /usr/local/bin/orchard https://github.com/orchardup/go-orchard/releases/download/2.0.5/linux
 - sudo chmod +x /usr/local/bin/orchard
 before_script:
- - '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && orchard hosts rm -f $TRAVIS_JOB_ID'
- - '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && orchard hosts create $TRAVIS_JOB_ID || false'
+ - 'if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then orchard hosts rm -f $TRAVIS_JOB_ID || true; fi'
+ - 'if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then orchard hosts create $TRAVIS_JOB_ID; fi'
 script:
  - nosetests tests/unit
- - '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && script/travis-integration || false'
+ - 'if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then script/travis-integration; fi'
 after_script:
- - '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && orchard hosts rm -f $TRAVIS_JOB_ID || false'
+ - 'if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then orchard hosts rm -f $TRAVIS_JOB_ID; fi'
 deploy:
   provider: pypi
   user: orchard