$NetBSD: patch-src_dune,v 1.2 2020/04/08 09:41:35 jaapb Exp $

Removed unknown argument.

--- src/dune.orig	2019-11-18 14:56:06.000000000 +0000
+++ src/dune
@@ -1,6 +1,5 @@
 (library (name async_rpc_kernel) (public_name async_rpc_kernel)
  (preprocess
-  (pps ppx_jane -allow-unannotated-ignores
-   -dont-check-doc-comments-attachment))
+  (pps ppx_jane))
  (libraries async_kernel core_kernel
-  async_kernel.persistent_connection_kernel protocol_version_header))
\ No newline at end of file
+  async_kernel.persistent_connection_kernel protocol_version_header))
