Make mod_dav_svn log all the errors in a given chain, rather than just the topmost one.  This fixes issue #2482.
Make mod_dav_svn log all the errors in a given chain, rather than just the
topmost one.  This fixes issue #2482.

Review by: dlr
           sussman

* subversion/mod_dav_svn/util.c
  (dav_svn_convert_error): Use build_error_chain to create our dav error.
  (build_error_chain): New helper function that recursively builds a chain
   of dav_error objects based on a svn_error_t.

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