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From: Jonathan Wakely <jwakely.gcc@gmail.com>
Date: Mon, 1 Aug 2022 12:25:21 +0100
Message-ID: <CAH6eHdTrBHwRv=rySN2gkWRWKYQ4f5CRnVgLPG640vEnspyU3g@mail.gmail.com>
Subject: Re: Setting up editors for the GNU/GCC coding style?
To: Stefan Schulze Frielinghaus <stefansf@linux.ibm.com>
Cc: Tim Lange <mail@tim-lange.me>, "gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
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On Mon, 1 Aug 2022 at 09:24, Stefan Schulze Frielinghaus wrote:
> I gave unexpand from GNU coreutils 8.32 a try.  Looks like it cannot
> deal with form feeds or maybe I'm missing something?
>
> $ bash -c "printf 'foo\n\f\n        bar\n'" | unexpand -
> foo
> unexpand: input line is too long

Which linux distro are you using? I see this error on Fedora and
Centos 8 but not on recent Debian or Ubuntu systems.

I've reported a bug:
https://bugzilla.redhat.com/show_bug.cgi?id=2112870