Merge branch 'mw-1.26'

1 files changed, 2 insertions, 1 deletions

diff --git a/includes/rcfeed/RCFeedFormatter.php b/includes/rcfeed/RCFeedFormatter.php
index 2f156598..f7e62ee6 100644
--- a/includes/rcfeed/RCFeedFormatter.php
+++ b/includes/rcfeed/RCFeedFormatter.php
@@ -32,7 +32,8 @@ interface RCFeedFormatter {
 	 * @param RecentChange $rc The RecentChange object showing what sort
 	 *                         of event has taken place.
 	 * @param string|null $actionComment
-	 * @return string The text to send.
+	 * @return string|null The text to send.  If the formatter returns null,
+	 *  the line will not be sent.
 	 */
 	public function getLine( array $feed, RecentChange $rc, $actionComment );
 }