$NetBSD: patch-src_dune,v 1.1 2019/03/19 10:43:19 jaapb Exp $

Removed unknown argument.
--- src/dune.orig	2019-02-13 10:33:20.000000000 +0000
+++ src/dune
@@ -1,4 +1,4 @@
 (library (name async_rpc_kernel) (public_name async_rpc_kernel)
- (preprocess (pps ppx_jane -dont-check-doc-comments-attachment))
+ (preprocess (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))
