There -was- no race on Win32 in httpd-2.0, because the child thread
  start function arg was redefined to be racy on httpd-2.1 (now fixed.)

  However, things aren't always clear when one goes nuts with casts,
  in fact they mask the real behavior.  So taking FirstBill's +1, clean
  up these ugly casts as we did in httpd-2.1 and make the code and it's
  behavior a little more self-evident.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@153678 13f79535-47bb-0310-9956-ffa450edef68