Rename caller_get_posts WP_Query flag to ignore_sticky_posts, because that is the only thing it does. fixes #14624. props scribu

git-svn-id: https://develop.svn.wordpress.org/trunk@15589 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/post.php

@@ -1122,7 +1122,7 @@ function get_posts($args = null) {
 	} elseif ( ! empty($r['exclude']) )
 		$r['post__not_in'] = wp_parse_id_list( $r['exclude'] );
 
-	$r['caller_get_posts'] = true;
+	$r['ignore_sticky_posts'] = true;
 	$r['no_found_rows'] = true;
 
 	$get_posts = new WP_Query;