Follow up r40146.
Follow up r40146.

* subversion/libsvn_fs_base/bdb/changes-table.c
  (svn_fs_bdb__changes_fetch): Use svn_uri_is_child().
   See http://svn.haxx.se/dev/archive-2009-10/0549.shtml

Suggested by: rhuijben

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion