Documentation / technical / api-xdiff-interface.txton commit setup.c: re-fix d95138e (setup: set env $GIT_WORK_TREE when .. (86d26f2)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)