Merge pull request #44 from php-http/hhvm-build

fix hhvm build on travis-ci

Author: Nyholm

.travis.yml

@@ -12,7 +12,6 @@ php:
     - 5.6
     - 7.0
     - 7.1
-    - hhvm
 
 env:
     global:
@@ -27,6 +26,8 @@ matrix:
     include:
         - php: 5.4
           env: COMPOSER_FLAGS="--prefer-stable --prefer-lowest" COVERAGE=true TEST_COMMAND="composer test-ci"
+        - php: hhvm
+          dist: trusty
 
 before_install:
     - if [[ $COVERAGE != true ]]; then phpenv config-rm xdebug.ini || true; fi