man/man2/*: HISTORY: Update history of syscalls A-CH

On Mon, Jan 19, 2026 at 11:54:29AM +0000, Seth McDonald wrote:
> Continuing the updating of HISTORY sections, this patch set regards
> system calls whose identifiers start with A through CH.  This time,
> more care was taken to ensure any modified lists are given in a
> somewhat chronological order.
>
> As hinted at previously on this [mailing] list, searching for a
> *truely* chronological ordering is likely a futile effort given the
> seemingly circular influences between many early systems.  But an
> approximation of this ordering based on our limited information can
> still be useful.  Which is the attitude with which these patches were
> made.

Link: <https://lore.kernel.org/linux-man/aWzk8dtIvNSdVlkY@devuan/>
Signed-off-by: Alejandro Colomar <alx@kernel.org>