Merge r1609936 from trunk:

mod_ssl: Set an error note for requests rejected due to
SSLStrictSNIVHostCheck

Submitted by: trawick
Reviewed by: minfrin, rjung


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1610327 13f79535-47bb-0310-9956-ffa450edef68