bug#28570: Added patch, pinging

[Göktuğ Kayaalp]

Hi, I have added a patch to this bug as was requested.  I'm just pinging
in case it went unnoticed as it seems to me that nothing has happened to
it in the past six days.  Anyways I guess I actually had to attach the
patch file from git-format-patch, so I'm doing that in this message.
Please excuse me for this mess, I'm quite ignorant of git, but I'll have
learned my lesson for my next patch.

Cheers!

-- 
İ. Göktuğ Kayaalp       <http://www.gkayaalp.com/>
                         024C 30DD 597D 142B 49AC
                         40EB 465C D949 B101 2427

>From 2936e254c12820cdfaa2683e1bd831a561ff1d15 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=B0=2E=20G=C3=B6ktu=C4=9F=20Kayaalp?= <self@gkayaalp.com>
Date: Tue, 10 Oct 2017 01:43:30 +0300
Subject: [PATCH] =?UTF-8?q?Implement=20=E2=80=98vc-default-dir-extra-heade?=
 =?UTF-8?q?rs=E2=80=99=20for=20vc-rcs?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add an implementation of this for vc-rcs that does nothing to suppress
the message the default function adds to the vc-dir buffer (Bug#28570).
* lisp/vc/vc-rcs.el (vc-rcs-dir-extra-headers): New function.
---
 lisp/vc/vc-rcs.el | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lisp/vc/vc-rcs.el b/lisp/vc/vc-rcs.el
index db1addbecd..6e639f8d13 100644
--- a/lisp/vc/vc-rcs.el
+++ b/lisp/vc/vc-rcs.el
@@ -177,6 +177,8 @@ vc-rcs-dir-status-files
          (push (list frel state) result))))
     (funcall update-function result)))
 
+(defun vc-rcs-dir-extra-headers (&rest ignore))
+
 (defun vc-rcs-working-revision (file)
   "RCS-specific version of `vc-working-revision'."
   (or (and vc-consult-headers
-- 
2.11.0