patch 7.4.828

Problem:    Crash when using "syn keyword x c". (Dominique Pelle)
Solution:   Initialize the keyword tabble. (Raymond Ko, PR 397)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    828,
 /**/
     827,
 /**/