$OpenBSD: patch-freehdl_kernel-list_hh,v 1.1 2017/06/03 14:25:16 espie Exp $
improve the hash function.

Index: freehdl/kernel-list.hh
--- freehdl/kernel-list.hh.orig
+++ freehdl/kernel-list.hh
@@ -634,7 +634,7 @@ get_hash(const shared_array<T> &a) {
   unsigned int num = 0;
   const int UINT_BIT = sizeof(unsigned int) * CHAR_BIT;
   for (int i = 0; i < a.size(); i++)
-    num = ((num << 2) || ((UINT_BIT - 2) >> 30)) + get_hash(a.content(i));
+    num = ((num << 2) | ((UINT_BIT - 2) >> 30)) + get_hash(a.content(i));
   return num;
 }