/usr/share/horde/nag/lib/ is in php-horde-nag 4.1.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/horde/nag/lib/.htaccess
/usr/share/horde/nag/lib/Ajax/
/usr/share/horde/nag/lib/Ajax/Application/
/usr/share/horde/nag/lib/Ajax/Application.php
/usr/share/horde/nag/lib/Ajax/Application/Handler/
/usr/share/horde/nag/lib/Ajax/Application/Handler/Smartmobile.php
/usr/share/horde/nag/lib/Ajax/Imple/
/usr/share/horde/nag/lib/Ajax/Imple/TagAutoCompleter.php
/usr/share/horde/nag/lib/Api.php
/usr/share/horde/nag/lib/Application.php
/usr/share/horde/nag/lib/Block/
/usr/share/horde/nag/lib/Block/Summary.php
/usr/share/horde/nag/lib/CompleteTask.php
/usr/share/horde/nag/lib/Driver/
/usr/share/horde/nag/lib/Driver.php
/usr/share/horde/nag/lib/Driver/Kolab.php
/usr/share/horde/nag/lib/Driver/Smartlist.php
/usr/share/horde/nag/lib/Driver/Sql.php
/usr/share/horde/nag/lib/Exception.php
/usr/share/horde/nag/lib/Factory/
/usr/share/horde/nag/lib/Factory/Driver.php
/usr/share/horde/nag/lib/Factory/TagBrowser.php
/usr/share/horde/nag/lib/Factory/Tasklists.php
/usr/share/horde/nag/lib/Form/
/usr/share/horde/nag/lib/Form/CreateTaskList.php
/usr/share/horde/nag/lib/Form/DeleteTaskList.php
/usr/share/horde/nag/lib/Form/EditTaskList.php
/usr/share/horde/nag/lib/Form/Search.php
/usr/share/horde/nag/lib/Form/Task.php
/usr/share/horde/nag/lib/Form/Type/
/usr/share/horde/nag/lib/Form/Type/NagAlarm.php
/usr/share/horde/nag/lib/Form/Type/NagDue.php
/usr/share/horde/nag/lib/Form/Type/NagMethod.php
/usr/share/horde/nag/lib/Form/Type/NagSearchDue.php
/usr/share/horde/nag/lib/Form/Type/NagStart.php
/usr/share/horde/nag/lib/Form/Type/NagTags.php
/usr/share/horde/nag/lib/LoginTasks/
/usr/share/horde/nag/lib/LoginTasks/Task/
/usr/share/horde/nag/lib/LoginTasks/Task/PurgeCompleted.php
/usr/share/horde/nag/lib/Nag.php
/usr/share/horde/nag/lib/Prefs/
/usr/share/horde/nag/lib/Prefs/Special/
/usr/share/horde/nag/lib/Prefs/Special/TaskAlarms.php
/usr/share/horde/nag/lib/QuickParser.php
/usr/share/horde/nag/lib/Search.php
/usr/share/horde/nag/lib/Smartmobile.php
/usr/share/horde/nag/lib/TagBrowser.php
/usr/share/horde/nag/lib/Tagger.php
/usr/share/horde/nag/lib/Task.php
/usr/share/horde/nag/lib/Tasklist.php
/usr/share/horde/nag/lib/Tasklists/
/usr/share/horde/nag/lib/Tasklists/Base.php
/usr/share/horde/nag/lib/Tasklists/Default.php
/usr/share/horde/nag/lib/Tasklists/Kolab.php
/usr/share/horde/nag/lib/Ui/
/usr/share/horde/nag/lib/Ui/VarRenderer/
/usr/share/horde/nag/lib/Ui/VarRenderer/Nag.php
/usr/share/horde/nag/lib/View/
/usr/share/horde/nag/lib/View/Helper/
/usr/share/horde/nag/lib/View/Helper/List.php
/usr/share/horde/nag/lib/View/List.php