Issue #1785 Update Javadoc

Signed-off-by: Steve Bolton <steve@boltn.com>

jetty-server/src/main/java/org/eclipse/jetty/server/handler/ContextHandler.java

@@ -318,7 +318,8 @@ public class ContextHandler extends ScopedHandler implements Attributes, Gracefu
      * @param vhosts
      *            Array of virtual hosts that this context responds to. A null host name or null/empty array means any hostname is acceptable. Host names may be
      *            String representation of IP addresses. Host names may start with '*.' to wildcard one level of names.  Hosts may start with '@', in which case they
-     *            will match the {@link Connector#getName()} for the request.
+     *            will match the {@link Connector#getName()} for the request.  If a hostname or hostname wildcard is specified before '@' followed by a connector name, then both
+     *            host and connector parts must match. 
      */
     public void setVirtualHosts(String[] vhosts)
     {