[Finder] docblock fixes

src/Symfony/Component/Finder/Finder.php

@@ -528,7 +528,7 @@ class Finder implements \IteratorAggregate, \Countable
     /**
      * Searches files and directories which match defined rules.
      *
-     * @param string|array $dirs A directory path or an array of directories
+     * @param string|string[] $dirs A directory path or an array of directories
      *
      * @return $this
      *

src/Symfony/Component/Finder/Iterator/ExcludeDirectoryFilterIterator.php

@@ -25,7 +25,7 @@ class ExcludeDirectoryFilterIterator extends FilterIterator implements \Recursiv
 
     /**
      * @param \Iterator $iterator    The Iterator to filter
-     * @param array     $directories An array of directories to exclude
+     * @param string[]  $directories An array of directories to exclude
      */
     public function __construct(\Iterator $iterator, array $directories)
     {