Docs: Consistently include an empty line between @since tag and @see, @link, or @global, per the documentation standards.

See #49572.

git-svn-id: https://develop.svn.wordpress.org/trunk@48067 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/post.php

@@ -999,6 +999,7 @@ function _wp_privacy_statuses() {
  * Arguments prefixed with an _underscore shouldn't be used by plugins and themes.
  *
  * @since 3.0.0
+ *
  * @global array $wp_post_statuses Inserts new post status object into the list
  *
  * @param string $post_status Name of the post status.