Fix HHVM builds

Author: yguedidi

.travis.yml

@@ -16,15 +16,13 @@ matrix:
       dist: trusty
 
 before_install:
+  - if [[ $TRAVIS_PHP_VERSION = hhv* ]]; then echo hhvm.php7.all=1 >> /etc/hhvm/php.ini; fi
   - travis_retry composer self-update
 
 install:
   - travis_retry composer require --dev --no-update squizlabs/php_codesniffer
   - travis_retry composer install --prefer-dist --no-interaction
 
-before_script:
-  - if [[ $TRAVIS_PHP_VERSION = hhvm* ]]; then echo hhvm.php7.all=1 >> /etc/hhvm/php.ini; fi
-
 script:
   - vendor/bin/phpcs
   - vendor/bin/phpunit --coverage-text --exclude-group integration