Found by formorer; fix on 42fb61d172b172, not in any released Tor.
@@ -802,7 +802,7 @@ test_util_strmisc(void)
{
char buf[1024];
int i;
- char *cp, *cp_tmp;
+ char *cp, *cp_tmp = NULL;
/* Test strl operations */
test_eq(5, strlcpy(buf, "Hello", 0));