Fix const correctness in the API
diff --git a/src/hb-shape.h b/src/hb-shape.h
index 18b35ae..685b11d 100644
--- a/src/hb-shape.h
+++ b/src/hb-shape.h
@@ -49,12 +49,12 @@
unsigned int num_features);
hb_bool_t
-hb_shape_full (hb_font_t *font,
- hb_buffer_t *buffer,
- const hb_feature_t *features,
- unsigned int num_features,
- const char *shaper_options,
- const char **shaper_list);
+hb_shape_full (hb_font_t *font,
+ hb_buffer_t *buffer,
+ const hb_feature_t *features,
+ unsigned int num_features,
+ const char * const *shaper_options,
+ const char * const *shaper_list);
const char **
hb_shape_list_shapers (void);
