Fix is_same_net6 - bugged if prefix length not divisible by 8.
diff --git a/src/util.c b/src/util.c
index 789bdd4..07f0338 100644
--- a/src/util.c
+++ b/src/util.c
@@ -330,7 +330,7 @@
     return 0;
 
   if (pfbits == 0 ||
-      (a->s6_addr[pfbytes] >> (8 - pfbits) != b->s6_addr[pfbytes] >> (8 - pfbits)))
+      (a->s6_addr[pfbytes] >> (8 - pfbits) == b->s6_addr[pfbytes] >> (8 - pfbits)))
     return 1;
 
   return 0;