Perform a serious scrubbing of the child process, before we report that
  we failed to create the child.  Cleans up CloseHandle() destruction to
  match all created handles - and postpone populating the *child_exit_event
  until we succeed.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@93369 13f79535-47bb-0310-9956-ffa450edef68