Log Message:-----------Add more clarification about SSH tunnels from Faheem Mitha.
Modified Files:-------------- pgsql/doc/src/sgml: runtime.sgml (r1.408 -> r1.409) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/runtime.sgml?r1=1.408&r2=1.409)
