merge this from 2.0.47:

    * mod_cgid: Eliminate a double-close of a socket.  This resolves
      various operational problems in a threaded MPM, since on the
      second attempt to close the socket, the same descriptor was
      often already in use by another thread for another purpose.

reviewed by: brianp, stoddard


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@100337 13f79535-47bb-0310-9956-ffa450edef68