Merge branch '4.0' into 4.1

* 4.0:
  Alpha-ordering for "use" statements

Author: nicolas-grekas

Filesystem.php

@@ -11,9 +11,9 @@
 
 namespace Symfony\Component\Filesystem;
 
+use Symfony\Component\Filesystem\Exception\FileNotFoundException;
 use Symfony\Component\Filesystem\Exception\InvalidArgumentException;
 use Symfony\Component\Filesystem\Exception\IOException;
-use Symfony\Component\Filesystem\Exception\FileNotFoundException;
 
 /**
  * Provides basic utility to manipulate the file system.

Tests/ExceptionTest.php

@@ -12,8 +12,8 @@
 namespace Symfony\Component\Filesystem\Tests;
 
 use PHPUnit\Framework\TestCase;
-use Symfony\Component\Filesystem\Exception\IOException;
 use Symfony\Component\Filesystem\Exception\FileNotFoundException;
+use Symfony\Component\Filesystem\Exception\IOException;
 
 /**
  * Test class for Filesystem.