Assume that url_shorten() receives unslashed data, as it does in core usage. see #21767.



git-svn-id: http://core.svn.wordpress.org/trunk@23575 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Unslash early, directly on the superglobal. see #21767.



git-svn-id: http://core.svn.wordpress.org/trunk@23576 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove an unslash in the deprecated WP_User_Search, as search_term is already unslashed in the constructor. see #21767.



git-svn-id: http://core.svn.wordpress.org/trunk@23577 1a063a9b-81f0-0310-95a4-ce76da25c4cd