* server/mpm_common.c (dummy_connection): If possible, use a non-SSL

  listening port to use for the dummy connection, to avoid causing
  (confusing) error log spam by sending EOF down an SSL port.

PR: 39653


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@726065 13f79535-47bb-0310-9956-ffa450edef68