
It's already documented in keyval.c (commit 0ee9ae7), but visitor.h can use a note, too. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1495471335-23707-3-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>