[util] Fix option parsing

Wow, who knew bool is one byte and I was using it as a 4byte int?!

C++ auto casts fails you in mysterious ways...

util/helper-cairo.cc

@@ -346,7 +346,7 @@ helper_cairo_line_from_buffer (helper_cairo_line_t *l,
 
   if (l->num_clusters) {
     memset ((void *) l->clusters, 0, l->num_clusters * sizeof (l->clusters[0]));
-    bool backward = HB_DIRECTION_IS_BACKWARD (hb_buffer_get_direction (buffer));
+    hb_bool_t backward = HB_DIRECTION_IS_BACKWARD (hb_buffer_get_direction (buffer));
     l->cluster_flags = backward ? CAIRO_TEXT_CLUSTER_FLAG_BACKWARD : (cairo_text_cluster_flags_t) 0;
     unsigned int cluster = 0;
     l->clusters[cluster].num_glyphs++;

util/options.cc

@@ -48,7 +48,7 @@ fail (hb_bool_t suggest_help, const char *format, ...)
 }
 
 
-bool debug = FALSE;
+hb_bool_t debug = FALSE;
 
 static gchar *
 shapers_to_string (void)
@@ -644,6 +644,7 @@ format_options_t::serialize (hb_buffer_t *buffer,
   {
     if (i)
       g_string_append_c (gs, '|');
+
     char glyph_name[30];
     if (show_glyph_names && !FT_Get_Glyph_Name (ft_face, info->codepoint, glyph_name, sizeof (glyph_name)))
       g_string_append_printf (gs, "%s", glyph_name);

util/options.hh

@@ -51,7 +51,7 @@
 void fail (hb_bool_t suggest_help, const char *format, ...) G_GNUC_NORETURN;
 
 
-extern bool debug;
+extern hb_bool_t debug;
 
 struct option_group_t
 {
@@ -115,7 +115,7 @@ struct view_options_t : option_group_t
 
   void add_options (option_parser_t *parser);
 
-  bool annotate;
+  hb_bool_t annotate;
   const char *fore;
   const char *back;
   double line_space;
@@ -149,8 +149,8 @@ struct shape_options_t : option_group_t
     hb_buffer_set_language (buffer, hb_language_from_string (language, -1));
   }
 
-  bool shape (const char *text, int text_len,
-	      hb_font_t *font, hb_buffer_t *buffer) {
+  hb_bool_t shape (const char *text, int text_len,
+		   hb_font_t *font, hb_buffer_t *buffer) {
     hb_buffer_reset (buffer);
     hb_buffer_add_utf8 (buffer, text, text_len, 0, text_len);
     setup_buffer (buffer);
@@ -296,9 +296,9 @@ struct format_options_t : option_group_t
 		  GString     *gs);
 
   protected:
-  bool show_glyph_names;
-  bool show_positions;
-  bool show_clusters;
+  hb_bool_t show_glyph_names;
+  hb_bool_t show_positions;
+  hb_bool_t show_clusters;
 };