Documentation / technical / api-xdiff-interface.txton commit submodule: avoid auto-discovery in prepare_submodule_repo_env() (10f5c52)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)