* subversion/libsvn_subr/stream.c: Include system-wide headers before
   including svn_private_config.h.

Patch by: Raphael Kubo da Costa <rakuco@FreeBSD.org>


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1466452 13f79535-47bb-0310-9956-ffa450edef68