Ensure unique visitor key variables are initialized to NULL.
@@ -1875,7 +1875,7 @@ insert_agent (int data_nkey, int agent_nkey, GModule module)
static char *
get_uniq_visitor_key (GLogItem * logitem)
{
- char *ua, *key;
+ char *ua = NULL, *key = NULL;
size_t s1, s2, s3;
ua = deblank (xstrdup (logitem->agent));
