--- ../cache/screen-4.4.0/attacher.c	2016-06-19 19:41:03.000000000 +0000
+++ ./attacher.c	2016-12-20 06:59:46.351839178 +0000
@@ -921,7 +933,6 @@
 #endif
 
   debug("screen_builtin_lck looking in gcos field\n");
-  strncpy(fullname, ppp->pw_gecos, sizeof(fullname) - 9);
   fullname[sizeof(fullname) - 9] = 0;
 
   if ((cp1 = index(fullname, ',')) != NULL)