Fix some sanitizer issues, and disable LTO in debug builds to save some iteration time.

src/http.c

@@ -1071,7 +1071,7 @@ void* tf_http_get_user_data(tf_http_t* http)
 
 const char* tf_http_get_cookie(const char* cookie_header, const char* name)
 {
-	if (!cookie_header)
+	if (!cookie_header || !name)
 	{
 		return NULL;
 	}