bin/60380: find(1) can't find snapshots

>Number:         60380
>Category:       bin
>Synopsis:       find(1) can't find snapshots
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jun 28 18:40:00 +0000 2026
>Originator:     Taylor R Campbell
>Release:        current, 11, 10, 9, ...
>Organization:
The NetBSnapD Findation, Inc.
>Environment:
>Description:

	find(1) apparently lacks any way to detect snapshot files:

	# find / -flags snap
	find: -flags: snap: illegal flags string
	# find / -flags snapshot
	find: -flags: snapshot: illegal flags string

	(Call the police, I did something illegal!)

>How-To-Repeat:

	as above

>Fix:

	Maybe teach libutil string_to_flags to accept `snap' just like
	flags_to_string yields it.