patch 8.2.3247: using uninitialized memory when checking for crypt method

Problem:    Using uninitialized memory when checking for crypt method.
Solution:   Check the header length before using the salt and seed.

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3247,
 /**/
     3246,
 /**/