Doc Bug #67073	s/sring/string

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@333354 c90b9560-bf6c-de11-be94-00142212c4b1
Doc Bug #67045 array_unique bad wording

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@333355 c90b9560-bf6c-de11-be94-00142212c4b1