* Put a note in the connection notes that the SSL handshake to the backend

  failed such that mod_proxy can put the worker in error state.

PR: 50332
Submitted by: Daniel Ruggeri <DRuggeri primary.net>
Reviewed by: rpluem


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1039304 13f79535-47bb-0310-9956-ffa450edef68