Documentation / technical / api-xdiff-interface.txton commit git-log.txt,rev-list-options.txt: put option blocks in proper order (f98fd43)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)