Make test3 fail on the first error.

test3 performs tests for null pointers but after that still continues
and uses them.  This results in segfault's. Fixing this issue by failing
on the first error.

test/test3.c

@@ -12,7 +12,7 @@
 #include <stdio.h>
 
 #define ITERATIONS 10
-#define MAX_ERROR 3
+#define MAX_ERROR 0
 #define SIZE 64
 
 int subtest;