From doc bug 65614

This change makes the wording clearer for byref arguments being allowed a default value in the function signature.

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Provided by anonymous #33404 (leight@gmail.com)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@331339 c90b9560-bf6c-de11-be94-00142212c4b1