Follow-up to r1930607: Export symbols declared in the svn_xml_private.h header

from the libsvn_subr executable.

* build.conf
  (libsvn_subr:msvc-export): Add private/svn_xml_private.h


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1930621 13f79535-47bb-0310-9956-ffa450edef68

Author: rinrab

build.conf

@@ -417,7 +417,7 @@ msvc-export =
         private/svn_thread_cond.h private/svn_waitable_counter.h
         private/svn_packed_data.h private/svn_object_pool.h private/svn_cert.h
         private/svn_config_private.h private/svn_dirent_uri_private.h
-        ../libsvn_subr/crypto.h
+        private/svn_xml_private.h ../libsvn_subr/crypto.h
 
 # Working copy management lib
 [libsvn_wc]