patch 7.4.2321

Problem:    When a test is commented out we forget about it.
Solution:   Let a test throw an exception with "Skipped" and list skipped test
            functions. (Christian Brabandt)

src/version.c

@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2321,
 /**/
     2320,
 /**/