Merge r1825120 from trunk:

Merge r1825120 from trunk:

* modules/ssl/ssl_engine_init.c (ssl_init_PushCAList): Remove function.
  (ssl_init_ca_cert_path): Use SSL_add_file_cert_subjects_to_stack()
  instead.

[Edit: This does change behaviour: the acceptable client CA list is now
 always be sent in sorted order rather than configured/file order.
 In the case of SSLCACertificatePath and SSLCADNRequestPath, the
 order will be stable rather than non-determistic as previously.]

PR: 61574
Github: closes #406
Reviewed by: jorton, jfclere, covener

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1915740 13f79535-47bb-0310-9956-ffa450edef68