--- sudo-1.8.6/plugins/sudoers/sudoers.in~	2010-08-18 14:25:38.000000000 +0300
+++ sudo-1.8.6/plugins/sudoers/sudoers.in	2011-08-15 19:32:35.509228012 +0300
@@ -55,6 +55,9 @@
 ## this may allow users to subvert the command being run via sudo.
 # Defaults env_keep += "XMODIFIERS GTK_IM_MODULE QT_IM_MODULE QT_IM_SWITCHER"
 ##
+# Uncomment to disable TTY tickets
+# Defaults !tty_tickets
+#
 ## Uncomment to enable logging of a command's output, except for
 ## sudoreplay and reboot.  Use sudoreplay to play back logged sessions.
 # Defaults log_output