free the ports. lets make some good examples.

git-svn-id: svn+ssh://jackaudio.org/trunk/jack@4069 0c269be4-1314-0410-8aa9-9f06e86f4224

tools/lsp.c

@@ -211,6 +211,10 @@ main (int argc, char *argv[])
 			}
 		}
 	}
+
+	if (ports)
+		jack_free (ports);
+
 	jack_client_close (client);
 	exit (0);
 }