libweston: grammar fix to recent comment
diff --git a/libweston/compositor.c b/libweston/compositor.c
index 4210264..8d6175e 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -2350,7 +2350,7 @@
 
 	/* If repaint fails, we aren't going to get weston_output_finish_frame
 	 * to trigger a new repaint, so drop it from repaint and hope
-	 * something later schedules a successful repaint. */
+	 * something schedules a successful repaint later. */
 	ret = weston_output_repaint(output);
 	if (ret != 0)
 		goto err;