On Wed, Oct 04, 2023 at 09:22:00AM +0200, Kirill Miazine wrote:
> user, group and chroot arguments for the filter option were not documented

If we're going to document the chroot option, it _might_ be worth adding a
note that the chroot environment needs /bin/sh to be present in order for the
filter to actually be launched.

This doesn't really affect users who are using exisiting third-party filters,
but if you're writing your own one the error message when /bin/sh is missing
is something along the lines of:

warn: lost processor: foo exited abnormally

... which doesn't give any clue as to what the real problem is.

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