about the "Tracking NetBSD-current"

Yesterday, I updated my system to current version by the
"Tracking
NetBSD-current".

When I run the command "etcupdate -b
/sandbox/current", it gave me a
warning. And then I read the manual and knew that I should
use "-s"
option instead of the "-b" in NetBSD4.0.

So, I think the step 4 in the "Installing a current
snapshot" section
of the "Tracking NetBSD-current" should be updated
or append with some
comments at least.

Thanks for your work.