Patch to address the following issues:

* CVE-2013-6371: hash collision denial of service
* CVE-2013-6370: buffer overflow if size_t is larger than int
int lh_ptr_equal(const void *k1, const void *k2)
{
 	return (k1 == k2);
 }

int lh_ptr_equal(const void *k1, const void *k2)
{
 	return (k1 == k2);
 }
