Updating phing after upstream pull request was merged.

Author: grasmash

composer.lock

@@ -6,10 +6,6 @@
     {
       "type": "composer",
       "url": "https://packagist.drupal-composer.org"
-    },
-    {
-      "type": "git",
-      "url": "https://github.com/grasmash/phing"
     }
   ],
   "require": {
@@ -36,7 +32,7 @@
     "drupal/coder":                 "~8.2",
     "phpunit/phpunit":              "4.6.*",
     "squizlabs/php_codesniffer":    "2.*",
-    "phing/phing":                  "dev-propertyfile-fix#b23d903f1d12ee615a9267fab3e2f67519805294",
+    "phing/phing":                  "dev-master#0ef30e55bb5871cb38903cc0ee9d76074118a22c",
     "jakoch/phantomjs-installer":   "1.9.8",
     "jarnaiz/behat-junit-formatter": "^1.2"
   },