4.0-beta2.

Built from https://develop.svn.wordpress.org/trunk@29228


git-svn-id: http://core.svn.wordpress.org/trunk@29012 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix syntax for single- and multi-line comments in wp-includes/class-http.php.

See #28943 and #28931.

Built from https://develop.svn.wordpress.org/trunk@29229


git-svn-id: http://core.svn.wordpress.org/trunk@29013 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Convert documentation for default arguments in `WP_Http::request()` to a hash notation.

Also update corresponding docs for functions that leverage its arguments.

See #28298.

Built from https://develop.svn.wordpress.org/trunk@29230


git-svn-id: http://core.svn.wordpress.org/trunk@29014 1a063a9b-81f0-0310-95a4-ce76da25c4cd