code quality: ensure get_the_author_posts() returns int

Author: justlevine

src/wp-includes/author-template.php

@@ -286,7 +286,7 @@ function get_the_author_posts() {
 	if ( ! $post ) {
 		return 0;
 	}
-	return count_user_posts( $post->post_author, $post->post_type );
+	return (int) count_user_posts( $post->post_author, $post->post_type );
 }
 
 /**

src/wp-includes/user.php

@@ -637,7 +637,7 @@ function count_user_posts( $userid, $post_type = 'post', $public_only = false )
 	 * @since 4.1.0 Added `$post_type` argument.
 	 * @since 4.3.1 Added `$public_only` argument.
 	 *
-	 * @param int          $count       The user's post count.
+	 * @param string       $count       The user's post count. This is a numeric-string for legacy reasons.
 	 * @param int          $userid      User ID.
 	 * @param string|array $post_type   Single post type or array of post types to count the number of posts for.
 	 * @param bool         $public_only Whether to limit counted posts to public posts.