[LTP] getpid: Link manpage in docparse comments

[linuxtestproject.agent@gmail.com]

Hi Jinseok,

On Mon May 25 01:17:03 2026, Jinseok Kim wrote:
> getpid: Link manpage in docparse comments

> -#include <errno.h>
> -
>  #include "tst_test.h"

Both patches look good. The `:manpage:` directives are correct Sphinx
docparse syntax, the unused `<errno.h>` removal is clean, and the
SAFE_MMAP continuation line is now properly tab-indented.

Reviewed-by: LTP AI Reviewer <ltp-ai@noreply.github.com>

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