Better validation of the URL used in core HTTP requests.



git-svn-id: http://core.svn.wordpress.org/trunk@24480 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Change the HTTP API's URL validation default, in trunk.



git-svn-id: http://core.svn.wordpress.org/trunk@24482 1a063a9b-81f0-0310-95a4-ce76da25c4cd