Fix "declaration shadows previous local" compiler warnings.
No functional change.

* subversion/libsvn_ra_serf/update.c
  (finish_report): Remove declaration of ERR from local scope
                   as there is already a function-global ERR.

* subversion/libsvn_ra_serf/util.c
  (svn_ra_serf__handle_xml_parser): Ditto.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1554620 13f79535-47bb-0310-9956-ffa450edef68