man/man2/: HISTORY, STANDARDS: Update history of syscalls H-M

On 2026-01-26T12:28:10+0000, Seth McDonald wrote:
> This set updates the history of system calls H to M.
>
> While I have been thorough with my research, I would encourage those
> interested to double-check that my edits make sense given the listed
> sources.  Particularly for linkat(2), SEEK_DATA/SEEK_HOLE, mkdirat(2),
> and mincore(2), since they took significantly more time and research
> than other functions.

Co-authored-by: Seth McDonald <sethmcmail@pm.me>
Message-ID: <cover.1769429341.git.sethmcmail@pm.me>
Cc: "G. Branden Robinson" <g.branden.robinson@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>