* mod_ssl: Improve environment variable extraction to be more

* mod_ssl: Improve environment variable extraction to be more
  efficient and to correctly handle DNs with duplicate tags.
  PR 45875.
  Trunk Patch: http://svn.apache.org/viewvc?view=rev&revision=724717
               http://svn.apache.org/viewvc?view=rev&revision=813165
               http://svn.apache.org/viewvc?view=rev&revision=820401
  2.2.x Patch: http://people.apache.org/~minfrin/ssl-env2.diff
  +1: minfrin, fuankg, jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@910319 13f79535-47bb-0310-9956-ffa450edef68