patch 8.2.2803: flicker when the popup menu has an info popup

Problem:    Flicker when the popup menu has an info popup.
Solution:   Avoid drawing over the popup when it's going to be redrawn in the
            same position. (closes #8131)  Also avoid redrawing the scrollbar.

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2803,
 /**/
     2802,
 /**/