set: Fix gtk_set_get_max

This function had an off-by-one error. Thankfully,
our selection tests are thorough enough to catch it.

diff --git a/gtk/gtkset.c b/gtk/gtkset.c
index b4e0ae7627eec8816d10f85a859d2b280905371a..18fab23c563b8cc634c99fe7bd58b8d139789429 100644 (file)
--- a/gtk/gtkset.c
+++ b/gtk/gtkset.c
@@ -364,7 +364,7 @@ gtk_set_get_max (GtkSet *set)
 
   r = &g_array_index (set->ranges, Range, set->ranges->len - 1);
 
-  return r->first + r->n_items;
+  return r->first + r->n_items - 1;
 }
 
 #if 0