tail(1) broken in 13-stable

[Peter Jeremy]

On 2021-May-06 12:59:54 +0200, Mariusz Zaborski <oshogbo at freebsd.org> wrote:
>Could you provide details how to reproduce this?
>
>On Thu, 6 May 2021 at 12:13, Peter Jeremy via freebsd-stable
><freebsd-stable at freebsd.org> wrote:
>>
>> Since updating from 12-stable to 13-stable, I've found that tail(1)
>> crashes, reporting:
>> Assertion failed: (procfd > STDERR_FILENO), function service_clean, file /usr/src/lib/libcasper/libcasper/service.c, line 394.
>> tail: unable to init casper: Socket is not connected
>> unless all three of stdin, stdout and stderr are open.  Whilst it
>> probably doesn't make sense to call tail without stdout open. there's
>> no obvious reason to require that stdin or stderr must be open.

server% tail /COPYRIGHT <&-
Assertion failed: (procfd > STDERR_FILENO), function service_clean, file /usr/src/lib/libcasper/libcasper/service.c, line 394.
tail: unable to init casper: Socket is not connected

-- 
Peter Jeremy
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