Prevent input of non-ascii characters (from Edoardo Spadolini)

TODO

@@ -1,4 +1,7 @@
 
+-pass the correct terminal size to nethack. (dgl handles
+ term resizes correctly, but nethack doesn't see the new size)
+
 -allow setting banners for the internal menus, with the same method
  as normal user-defined menus, but only the banner is used from them.
  if no such menu is defined, then uses the default banner file.

mygetnstr.c

@@ -81,7 +81,7 @@ mygetnstr(char *buf, int maxlen, int doecho)
 		    addstr("\010 \010");
 	    }
 	}
-	else if ((c >= ' ' && c <= '~') || (c >= 0xA0 && c <= 0xFF))
+	else if ((c >= ' ' && c <= '~'))
 	{
 	    if (i < maxlen)
 	    {