On the fsfs-ucsnorm branch: match the style of tons of horible casts in
the serializer to silence a compiler warning.

* subversion/libsvn_fs_fs/temp_serializer.c (serialize_dir_entry):
   Typecast the C-string argument to svn_temp_serializer__set_null.


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-ucsnorm@1562512 13f79535-47bb-0310-9956-ffa450edef68