v9.21.15, warning: no root hints for view '_bind' ; how to set hint for built-in view?

[pgnd]

on

	named -v
		BIND 9.21.15 (Development Release) <id:noscm>

i see in my logs

	21-Nov-2025 00:06:54.286 general: warning: no root hints for view '_bind'
	21-Nov-2025 00:06:54.286 general: warning: no root hints for view '_bind'

it's a warning, so should be nbd.

attempting to resolve/quiet it, with

	view "_bind" chaos {
		match-clients { none; };
		recursion no;
		zone "." { type hint; file "/var/lib/named/named.root"; };
	};

check

	named-checkconf
		/etc/named/named.conf:425: attempt to redefine builtin view '_bind'

how do you modify the built-in view's hint ?