Documentation / technical / api-xdiff-interface.txton commit merge-recursive: switch from (oid,mode) pairs to a diff_filespec (8daec1d)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)