Documentation / technical / api-xdiff-interface.txton commit t7406: fix misleading "rev-parse --max-count=1 HEAD" (ad6a599)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)