Switch to new recommended syntax

vinkla · vinkla · commit 4df1581bb470 · 2016-04-13T15:49:12.000+02:00
diff --git a/composer.json b/composer.json
@@ -16,7 +16,7 @@
         "php": ">=5.3.9"
     },
     "require-dev": {
-        "phpunit/phpunit": "^4.8|^5.0"
+        "phpunit/phpunit": "^4.8 || ^5.0"
     },
     "autoload": {
         "psr-4": {
