mod_ssl: Do not print content of SSL CA directories during -DDUMP_CA_CERTS, make
-DDUMP_CERTS and -DDUMP_CA_CERTS mutually exclusive and document them.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1558775 13f79535-47bb-0310-9956-ffa450edef68