Following up on r39949, export the new private functions from the shared libraries on Windows.
Following up on r39949, export the new private functions from the shared
libraries on Windows.

* build.conf
  (libsvn_client,
   libsvn_repos): Add new headers to msvc-export line.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@880027 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion