swig bindings: Allow wri_abspath in svn_client_ra_session2() NULL.

* subversion/bindings/swig/svn_client.i
 (%apply const char *MAY_BE_NULL): Add const char *wri_abspath.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1917448 13f79535-47bb-0310-9956-ffa450edef68
1 file changed