[TASK] Fix old classnames in extensionmanager

Fix documentation in extensionmanager pointing to outdated classnames.

Releases: master, 7.6
Resolves: #73636
Change-Id: Idfd277cde8674dc7a6fae7eb7786150a941ad0ba
Reviewed-on: https://review.typo3.org/46858


Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Tested-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Nicole Cordes <typo3@cordes.co>
Tested-by: Nicole Cordes <typo3@cordes.co>

typo3/sysext/extensionmanager/Classes/Utility/Importer/MirrorListUtility.php

@@ -56,7 +56,7 @@ class MirrorListUtility implements \SplObserver
 
     /**
      * Method collects mirrors' details and returns instance of
-     * Tx_Extensionmanager_Domain_Model_Mirrors with retrieved details.
+     * \TYPO3\CMS\Extensionmanager\Domain\Model\Mirrors with retrieved details.
      *
      * @param string $localMirrorListFile absolute path to local mirror xml.gz file
      * @return \TYPO3\CMS\Extensionmanager\Domain\Model\Mirrors

typo3/sysext/extensionmanager/Classes/Utility/Repository/Helper.php

@@ -255,7 +255,7 @@ class Helper implements \TYPO3\CMS\Core\SingletonInterface
      * extension list might be outdated.
      *
      * @access public
-     * @see Tx_Extensionmanager_Utility_Repository_Helper::PROBLEM_NO_VERSIONS_IN_DATABASE,
+     * @see \TYPO3\CMS\Extensionmanager\Utility\Repository\Helper::PROBLEM_NO_VERSIONS_IN_DATABASE,
      * @throws ExtensionManagerException
      * @return int "0" if everything is perfect, otherwise bitmask with problems
      */