patch 9.0.0889: keycode check script has a few flaws

Problem:    Keycode check script has a few flaws.
Solution:   Sort on terminal name.  Ignore XTGETTCAP responses.  Check for
            version and status response.  Update entries.

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    889,
 /**/
     888,
 /**/