Documentation / technical / api-xdiff-interface.txton commit contrib/examples/git-repack.sh: use the $( ... ) construct for command substitution (6ccca67)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)