ceph/ceph — pull request #1544 by yehudasa (2014-03-27 18:14:01+00:00)
Title: rgw: use s->content_length instead of s->length

Fixes: #7876
Need to use the actual content length, not the pointer to the string.
This was probably working because there's correlation to when
content_length > 0 to whether s->length is not null.

Signed-off-by: Yehuda Sadeh