Run rawurlencode_deep() through the parsed query in canonical. (Introduces...

Run rawurlencode_deep() through the parsed query in canonical. (Introduces rawurlencode_deep().) props toppa for the initial patch. fixes #20143.



git-svn-id: https://core.svn.wordpress.org/trunk@20611 1a063a9b-81f0-0310-95a4-ce76da25c4cd