Documentation / technical / api-xdiff-interface.txton commit apply --ignore-space-change: lines with and without leading whitespaces do not match (14d3bb4)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)