Add $format argument to get_search_form() to allow HTML5 markup. props georgestephanis, lancewillett. fixes #15081.

git-svn-id: http://core.svn.wordpress.org/trunk@23667 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix array formatting. see #21210.

git-svn-id: http://core.svn.wordpress.org/trunk@23668 1a063a9b-81f0-0310-95a4-ce76da25c4cd