Disable UTMP updating feature.

Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1104514

--- a/acconfig.h
+++ b/acconfig.h
@@ -191,7 +191,7 @@
  * If screen is installed with permissions to update /etc/utmp (such
  * as if it is installed set-uid root), define UTMPOK.
  */
-#define UTMPOK
+#undef UTMPOK
 
 /* Set LOGINDEFAULT to one (1)
  * if you want entries added to /etc/utmp by default, else set it to
@@ -214,7 +214,7 @@
  * Set CAREFULUTMP to one (1) if you want that users have at least one
  * window per screen session logged in.
  */
-#define LOGOUTOK 1
+#undef LOGOUTOK
 #undef CAREFULUTMP
 
 
--- a/utmp.c
+++ b/utmp.c
@@ -882,6 +882,7 @@
 }
 # endif /* BUGGYGETLOGIN */
 
+#ifdef UTMPOK
 #if defined(linux) && defined(GETUTENT)
 # undef pututline
 
@@ -899,4 +900,5 @@
   return u->ut_type == u2->ut_type ? u : 0;
 }
 #endif
+#endif