patch 8.1.1396: 'wincolor' does not apply to lines below the buffer

Problem:    'wincolor' does not apply to lines below the buffer.
Solution:   Also apply 'wincolor' to the "~" lines and the number column.

src/version.c

@@ -767,6 +767,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1396,
 /**/
     1395,
 /**/