Documentation / technical / api-xdiff-interface.txton commit t5551: mark half-auth no-op fetch test as v0-only (3a9e1ad)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)