f Add comment

Author: tnull

src/event.rs

@@ -906,7 +906,9 @@ where
 				};
 
 				match self.payment_store.update(&update) {
-					Ok(_) => (),
+					Ok(_) => (
+						// No need to do anything if the update was applied.
+					),
 					Err(e) => {
 						log_error!(
 							self.logger,