patch 8.1.1266: winbar test doesn't test enough

Problem:    Winbar test doesn't test enough.
Solution:   Check that the WinBar actually shows up.  Correct check for clicks
            with no effect. (Ben Jackson, closes #4338)

src/version.c

@@ -767,6 +767,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1266,
 /**/
     1265,
 /**/