patch 8.0.0075

Problem:    Using number for exception type lacks type checking.
Solution:   Use an enum.

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    75,
 /**/
     74,
 /**/