indent: fix CVE-2023-40305

GNU indent 2.2.13 has a heap-based buffer overflow in search_brace
in indent.c via a crafted file.

Reference:
https://savannah.gnu.org/bugs/index.php?64503

Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

Author: yogi-u