bug#7307: 24.0.50; Mode line had more than just dashes removed

[Eli Zaretskii]

> From: Stephen Berman <stephen.berman@gmx.net>
> Date: Mon, 01 Nov 2010 19:11:49 +0100
> Cc: 7307@debbugs.gnu.org
> 
> +  mode_line_filler = !NILP (Fwindow_system (Qnil)) ? lots_of_spaces 
> +    : lots_of_dashes;

Actually, you want to use `FRAME_WINDOW_P (f)' here.  It does exactly
what you mean, but with much smaller overhead (for starters, it
doesn't call Lisp).

> -         || field_width > sizeof (lots_of_dashes))
> +         || field_width > sizeof (mode_line_filler))

mode_line_filler is a pointer, so the result of sizeof here is not
what you want.