Fix logging of SSL session cache timeout value (at TRACE2 level).
Inadvertent side effect of r907918, where the timeout calculation
in ssl_callback_NewSessionCacheEntry was slightly modified.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1510098 13f79535-47bb-0310-9956-ffa450edef68