Documentation / technical / api-xdiff-interface.txton commit parse-options.c: make OPTION_COUNTUP respect "unspecified" values (e0070e8)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)