diff -Nru sudo-1.7.0.orig/defaults.c sudo-1.7.0/defaults.c
--- sudo-1.7.0.orig/defaults.c	2008-11-09 15:13:12.000000000 +0100
+++ sudo-1.7.0/defaults.c	2009-01-05 05:08:06.000000000 +0100
@@ -428,7 +428,7 @@
     def_askpass = estrdup(_PATH_SUDO_ASKPASS);
 #endif
     def_sudoers_locale = estrdup("C");
-    def_env_reset = TRUE;
+    def_env_reset = FALSE;
     def_set_logname = TRUE;
     def_closefrom = STDERR_FILENO + 1;