Merge fixes from 'NetHack-3.6' into NetHack-3.7-Jan2020

include/vmsconf.h

@@ -168,6 +168,11 @@ PANICTRACE_GDB=2  #at conclusion of panic, show a call traceback and then
 
 #define FCMASK 0660 /* file creation mask */
 
+/*
+ * 
+ */
+#define NO_VSNPRINTF /* Avoid vsnprintf, use less-safe vsprintf instead. */
+
 /*
  * The remainder of the file should not need to be changed.
  */