/usr/share/php/Symfony/ is in php-symfony-lock 3.4.6+dfsg-1.
This file is owned by root:root, with mode 0o755.
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/usr/share/php/Symfony/Component/
/usr/share/php/Symfony/Component/Lock/
/usr/share/php/Symfony/Component/Lock/Exception/
/usr/share/php/Symfony/Component/Lock/Exception/ExceptionInterface.php
/usr/share/php/Symfony/Component/Lock/Exception/InvalidArgumentException.php
/usr/share/php/Symfony/Component/Lock/Exception/LockAcquiringException.php
/usr/share/php/Symfony/Component/Lock/Exception/LockConflictedException.php
/usr/share/php/Symfony/Component/Lock/Exception/LockExpiredException.php
/usr/share/php/Symfony/Component/Lock/Exception/LockReleasingException.php
/usr/share/php/Symfony/Component/Lock/Exception/LockStorageException.php
/usr/share/php/Symfony/Component/Lock/Exception/NotSupportedException.php
/usr/share/php/Symfony/Component/Lock/Factory.php
/usr/share/php/Symfony/Component/Lock/Key.php
/usr/share/php/Symfony/Component/Lock/Lock.php
/usr/share/php/Symfony/Component/Lock/LockInterface.php
/usr/share/php/Symfony/Component/Lock/Store/
/usr/share/php/Symfony/Component/Lock/Store/CombinedStore.php
/usr/share/php/Symfony/Component/Lock/Store/FlockStore.php
/usr/share/php/Symfony/Component/Lock/Store/MemcachedStore.php
/usr/share/php/Symfony/Component/Lock/Store/RedisStore.php
/usr/share/php/Symfony/Component/Lock/Store/RetryTillSaveStore.php
/usr/share/php/Symfony/Component/Lock/Store/SemaphoreStore.php
/usr/share/php/Symfony/Component/Lock/Store/StoreFactory.php
/usr/share/php/Symfony/Component/Lock/StoreInterface.php
/usr/share/php/Symfony/Component/Lock/Strategy/
/usr/share/php/Symfony/Component/Lock/Strategy/ConsensusStrategy.php
/usr/share/php/Symfony/Component/Lock/Strategy/StrategyInterface.php
/usr/share/php/Symfony/Component/Lock/Strategy/UnanimousStrategy.php
/usr/share/php/Symfony/Component/Lock/autoload.php