Added write/say to bad efun list

Both should not be used, because it is not clear
who get the message and they often end up at the
wrong receiver or in the driver log
diff --git a/bad_efun.list b/bad_efun.list
index a2651d7..65c0ef3 100644
--- a/bad_efun.list
+++ b/bad_efun.list
@@ -21,3 +21,5 @@
 enable_commands
 disable_commands
 efun:::*
+write
+say