Fix graceful shutdown with the scoreboard changes. Basically, we want

to set the sb_type only after we zero out the scoreboard.  Before this,
we were segfaulting when we tried to free() a shared memory scoreboard.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88013 13f79535-47bb-0310-9956-ffa450edef68