Docs: Various formatting improvements to inline docblocks.

See #49572

git-svn-id: https://develop.svn.wordpress.org/trunk@48574 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/sitemaps.php

@@ -61,7 +61,7 @@ function wp_get_sitemap_providers() {
  *
  * @param string               $name     Unique name for the sitemap provider.
  * @param WP_Sitemaps_Provider $provider The `Sitemaps_Provider` instance implementing the sitemap.
- * @return bool Returns true if the sitemap was added. False on failure.
+ * @return bool Whether the sitemap was added.
  */
 function wp_register_sitemap_provider( $name, WP_Sitemaps_Provider $provider ) {
 	$sitemaps = wp_sitemaps_get_server();