cfuse: really ignore write() return value
cfuse: really ignore write() return value

Hopefully this will make gcc stop complaining. The void cast no longer
seems to silence unchecked return code errors, on gitbuilder at least.

Signed-off-by: Colin McCabe <7b35906f1d014e74a9dc8c913eb229119df647aa@dreamhost.com>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph