[PATCH] S390: Get rid of format warning in mem.c

[Stefan Liebler]

On 12/12/2014 10:10 PM, Roland McGrath wrote:
> Wouldn't %Zu match the existing type?
>
The warning is emitted with %zu or %Zu.

The type of db->head->first_free is nscd_ssize_t, which is an int32_t 
(sysdeps/generic/nscd-types.h) and int64_t on alpha 
(sysdeps/alpha/nscd-types.h).

Casts were added to avoid warnings in other usages of 
db->head->first_free in combination with dbg_log()-messages in this file 
(see commit-id 568470bbff2c86996cbb7ebb5411a2b5d4c46fe4).