Solve a bug I introduced this weekend, we want to compare core_*->r
  as a boolean, not by value.

  Reported by: Barrie Slaymaker <barries@slaysys.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@90729 13f79535-47bb-0310-9956-ffa450edef68