Following up on r1148434 (build failure) and r1052451 (adding of the header), add new header to the exports of libsvn_subr.
Following up on r1148434 (build failure) and r1052451 (adding of the header),
add new header to the exports of libsvn_subr.

* build.conf
  (libsvn_subr): Add private\svn_error_private.h to the exports.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1148453 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion