ra_dav-refactoring: Add the code description to the request struct too.

* subversion/libsvn_ra_dav/ra_dav.h
  (svn_ra_dav__request_t): Add 'code_desc' member.

* subversion/libsvn_ra_dav/util.c
  (generate_error): Use the new member.
  (svn_ra_dav__request_dispatch): Set the value of the new member.


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/ra_dav-refactoring@862784 13f79535-47bb-0310-9956-ffa450edef68
2 files changed