HTTP API: Add a unit test for `get_status_header_desc()`.

Props pbearne.
Fixes #46631.
Built from https://develop.svn.wordpress.org/trunk@46107


git-svn-id: http://core.svn.wordpress.org/trunk@45919 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/functions.php

@@ -1250,7 +1250,7 @@ function wp( $query_vars = '' ) {
  * @global array $wp_header_to_desc
  *
  * @param int $code HTTP status code.
- * @return string Empty string if not found, or description if found.
+ * @return string Status description if found, an empty string otherwise.
  */
 function get_status_header_desc( $code ) {
 	global $wp_header_to_desc;

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-46106';
+$wp_version = '5.3-alpha-46107';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.