Fix message type (respose->response) and fix */*comment*/ blocks to work

with fussy compilers.

os/xdmcp.c

@@ -1459,7 +1459,7 @@ recv_alive_msg (unsigned length)
     	}
 	else
     	{
-	    XdmcpDeadSession ("Alive respose indicates session dead");
+	    XdmcpDeadSession ("Alive response indicates session dead");
     	}
     }
 }