bug#28570: 27.0.50; [PATCH] Disable unhelpful default Extra: header in vc-dir

["Göktuğ Kayaalp" <self@gkayaalp.com>]

On 2017-09-25 03:24 +03, Dmitry Gutov <dgutov@yandex.ru> wrote:
> On 9/23/17 6:39 PM, Göktuğ Kayaalp wrote:
>>
>> The function ‘vc-default-dir-extra-headers’ is implemented as a stub
>> function that prints in the vc-dir buffer a rather annoying and
>> unhelpful message advicing that the implementer of a VC backend should
>> create some backend specific headers and that doing this is easy.
>> vc-rcs doesn't implement any (and I doubt it needs), and thus whenever I
>> use vc-dir on an RCS repository, this message is shown.  Attached is a
>> patch that disables this behaviour by making the said function return
>> nil instead (the function as it is includes a comment that says to do so
>> before the ‘release’).
>
> Instead of changing the default, how about we create a RCS-specific
> implementation that does nothing? Because it doesn't need to.

That's fine with me, I'll try to write a new patch over the weekend.

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