add sebastianbergman/comparator 2.0 to require-dev

ek9 · ek9 · commit 1c7ecb1beedb · 2018-03-18T17:06:27.000Z
diff --git a/composer.json b/composer.json
@@ -37,6 +37,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "~5.0",
+        "sebastian/comparator": "~2.0",
         "mikey179/vfsStream": "1.6.*"
     },
     "suggest": {
