clean up some mod_cgid issues related to other child maintenance...

  the APR_OC_REASON_DEATH/APR_OC_REASON_LOST code was sending SIGWINCH
  to the parent (usually init) instead of itself

  APR_OC_REASON_RESTART/_UNREGISTER code separated so that we go through
  there once


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88697 13f79535-47bb-0310-9956-ffa450edef68