patch 7.4.799

Problem:    Accessing memory before an allocated block.
Solution:   Check for not going before the start of a pattern. (Dominique
            Pelle)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    799,
 /**/
     798,
 /**/