FlysystemPluginManagerTest: Using a call-time pass-by-reference is deprecated since PHP 5.3...

keshav.k → made their first commit to this issue’s fork.

I have created the MR !30.
Please review.
Thank you.

I have review code. its looks correct.
+1 RTBC

Needs work, this code change resulted in 2 failing tests.

This test is testing a class method that has variables that are passed by reference (`Drupal\flysystem\Plugin\FlysystemPluginManager::alterDefinitions`). `Drupal\flysystem\FlysystemPluingManager` extends `Drupal\Core\Plugin\DefaultPluginManager` and overrides the `alterDefinitions` method on that class. As extension, this class needs to maintain the API definition of the parent class, which receives parameters passed by reference.