Documentation / technical / api-xdiff-interface.txton commit update-index --split-index: do not split if $GIT_DIR is read only (a0a9675)
   1xdiff interface API
   2===================
   3
   4Talk about our calling convention to xdiff library, including
   5xdiff_emit_consume_fn.
   6
   7(Dscho, JC)