dead code und unbenutzte Variablen entfernt

Change-Id: I18b5d6a8cdf221d3a376541c01e82a1c64f10508
diff --git a/std/secure_thing.c b/std/secure_thing.c
index 805c7df..e47f66a 100644
--- a/std/secure_thing.c
+++ b/std/secure_thing.c
@@ -29,5 +29,6 @@
   string sh;
   if( sh=QueryProp(P_SHORT) )
     return funcall(sh)+".\n";
+  return 0;
 }