* fringe.c (draw_window_fringes, update_window_fringes)

* fringe.c (draw_window_fringes, update_window_fringes)
(compute_fringe_widths):
* w32term.c (x_draw_glyph_string):
* window.c (candidate_window_p, Frecenter):
* xfaces.c (realize_basic_faces, realize_default_face)
(Fbitmap_space_p, Finternal_set_lisp_face_attribute)
(x_update_menu_appearance, face_attr_equal_p, lface_equal_p):
* xfns.c (x_set_cursor_color, xic_free_xfontset):
* xmenu.c (Fx_menu_bar_open_internal):
* xselect.c (x_reply_selection_request, Fx_get_atom_name):
* xsettings.c (xft_settings_event):
* xterm.c (x_draw_glyph_string, x_had_errors_p):
Use bool for booleans.  Adjust style and comments where
appropriate.
* dispextern.h (draw_window_fringes, update_window_fringes)
(compute_fringe_widths):
* xterm.h (x_had_errors_p): Adjust prototype.